The null hypothesis is that the true average age of the sporting goods store's customers is equal to or less than 39. The alternative hypothesis is that the true average age is greater than 39.
To test this hypothesis, we can use a one-sample t-test. The t-statistic for this sample is (41.3-39)/(7/sqrt(43)) = 3.06. With 42 degrees of freedom (43-1), the critical value for a one-tailed test with alpha=0.10 is 1.684. Since 3.06 > 1.684, we reject the null hypothesis and conclude that there is evidence to suggest that the true average age of the store's customers is greater than 39.
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grear tire company has produced a new tire with an estimated mean lifetime mileage of 33,500 miles. management also believes that the standard deviation is 3,500 miles and that tire mileage is normally distributed. to promote the new tire, grear has offered to refund some money if the tire fails to reach 30,000 miles before the tire needs to be replaced. specifically, for tires with a lifetime below 30,000 miles, grear will refund a customer $1 per 100 miles short of 30,000. (a) for each tire sold, what is the average cost of the promotion (in $)? (use at least 1,000 trials. round your answer to two decimal places.)
Answer:
C
Step-by-step explanation:
Using the UIP equation, assume that the expected future rate (after one year) for euros (in terms of dollars) equals $1.20, while the current spot rate is 1.15. The current interest rate on euro deposits is 2%, and the interest rate on dollar deposits is 3%. Should you invest in:
a)the US
b) or in Europe?
c)It is indifferent
d)Neither one In Europe In the US
The current interest rate on euro deposits is 2%, and the interest rate on dollar deposits is 3% .You should invent in d)Neither one In Europe In the US.
Using the UIP (Uncovered Interest Parity) equation, we can determine whether it is better to invest in Europe or the US. The expected future exchange rate is $1.20/€, while the current spot rate is $1.15/€. The interest rate on euro deposits is 2%, and the interest rate on dollar deposits is 3%.
The UIP equation is given by:
(Expected future exchange rate - Current spot rate) / Current spot rate = (Interest rate in domestic currency - Interest rate in foreign currency)
In this case, the domestic currency is USD and the foreign currency is EUR. Plugging in the values, we get:
($1.20 - $1.15) / $1.15 = (0.03 - 0.02)
Solving for the equation:
0.0435 ≈ 0.01
The difference in interest rates (1%) is approximately equal to the expected appreciation of the euro against the dollar (4.35%). Therefore, according to the UIP equation, there should be no significant difference between investing in Europe or the US, as the potential returns are nearly equal when considering currency movements and interest rates.
In conclusion, based on the UIP equation, you can choose to invest in either Europe or the US, as the expected returns are similar. However, it is important to consider additional factors, such as risk tolerance and investment objectives, before making a final decision. The correct answer is d.
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Adapt the proof in the text that there are infinitely many primes to prove that there are infinitely many primes of the form 3k + 2, where k is a nonnegative inte- ger. (Hint: Suppose that there are only finitely many such primes 91,92, ..., In, and consider the number 39192 ... 9n – 1.]
We must conclude that there are infinitely many primes of the form 3k + 2, where k is a non-negative integer.
To adapt the proof:
We can use a similar contradiction argument.
Suppose that there are only finitely many primes of the form 3k + 2, say p1, p2, ..., pn.
Let N = 3p1p2...pn + 2. Note that N is of the form 3k + 2 for some non-negative integer k.
Now, let's consider the prime factorization of N. Either N is prime and of the form 3k + 2, in which case we have found a new prime of the desired form, contradicting our assumption that there are only finitely many such primes. Or, N is composite and has a prime factorization consisting only of primes of the form 3k + 1 (since any prime of the form 3k + 2 would divide N). But this implies that N itself is of the form 3k + 1.
Now, let's consider the number M = 3N + 2. M is also of the form 3k + 2, and so must have a prime factorization consisting only of primes of the form 3k + 1. But since N is of the form 3k + 1, we have
M = 3(3p1p2...pn + 1) + 2 = 9p1p2...pn + 5. This means that M has a prime factorization consisting of primes of the form 3k + 2, which contradicts our assumption that there are only finitely many such primes.
Therefore, we must conclude that there are infinitely many primes of the form 3k + 2, where k is a non-negative integer.
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HELPPPPP
Sparrowtown Street and Seaside Avenue intersect. If the diagonal distance across the
intersection is 8 meters and Sparrowtown Street is 5 meters wide, how wide is Seaside
Avenue? If necessary, round to the nearest tenth.
Submit
meters
The wideness of Seaside Avenue is 6.2 meters wide.
How to find the wideness of the Seaside AvenueThe wideness is calculated using Pythagorean theorem
Let's call the width of Seaside Avenue "x".
The description matched a right triangle where the diagonal distance is the hypotenuse and the two legs are 5 and x. The using Pythagoras theorem we have that
5² + x² = 8²
Simplifying and solving for x
x² = 8² - 5²
x² = 39
x ≈ 6.2
Therefore, Seaside Avenue is approximately 6.2 meters wide.
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I'm still seeking help with this exercise. It's not clear to me how to download and use the DATATSETS to solve the problems. any experts in the field of statistic can help me out?Your assistance will certainly help me to build my knowledge and to do other exercises like these on my ownYou will have been asked to use any two publicly available dataset to solve the problem of your choice. You are strongly discouraged from using well-known datasets, particularly those are as follows: Iris TitanicThis is your opportunity to branch out and explore some new data! The UCI Machine Learning Repository and Kaggle are good places to seek out a dataset. Kaggle also maintains a curated list of datasets that are cleaned and ready for analyses. Your dataset must be automatically downloaded in your code or included with your submission.Although the exact format is up to you, the report should include the following at a minimum:A. an introduction/overview/executive summary section that describes the dataset and variables, and summarizes the goal of the project and key steps that were performed;B. a methods/analysis section that explains the process and techniques used, including data cleaning, data exploration and visualization, insights gained, and your modeling approaches (you must use at least two different models or algorithms);C. a results section that presents the modeling results and discusses the model performance; andD. a conclusion section that gives a brief summary of the report, its potential impact, its limitations, and future work.
Present your modeling results and discuss the model performance. Finally, in the conclusion section, provide a brief summary of the report, its potential impact, limitations, and future work. With these guidelines, you can develop your knowledge and tackle exercises like these on your own.
If you are having difficulty with downloading and using datasets for your exercise, it would be best to seek assistance from an expert in the field of statistics. They can guide you on the proper way of accessing and utilizing the datasets to solve the problems assigned to you.
When selecting a dataset, it is recommended to avoid well-known datasets such as Iris or Titanic. Instead, explore some new data from sources like UCI Machine Learning Repository or Kaggle. Kaggle also provides a curated list of datasets that are pre-cleaned and ready for analysis. Make sure that your selected dataset can be automatically downloaded in your code or included in your submission.
For your report, ensure that it includes an introduction that gives an overview of the dataset and variables, as well as the goal of the project and the key steps you took to achieve it. Your methods/analysis section should explain the techniques used, including data cleaning, exploration, visualization, insights gained, and your modeling approaches. It is essential to use at least two different models or algorithms.
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This question Identify the two events described in the study and determine if the results indicate that the events are independent or dependent a study found that there is no relationship between being a around alcohol abuse and developing skin cancer
The study does indicate that there is no relationship between being around alcohol abuse and developing skin cancer. Based on the study's results, the events are independent.
The study described in your question only mentions one event, which is developing skin cancer. There is no mention of a second event, so it is not possible to determine if the events are independent or dependent. However, the study does indicate that there is no relationship between being around alcohol abuse and developing skin cancer.
In the study, two events are described:
1. Being around alcohol abuse
2. Developing skin cancer
The study found that there is no relationship between these two events. This means that the occurrence of one event does not influence the occurrence of the other event. Therefore, based on the study's results, the events are independent.
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Find f(g(-4)) and g(f(2)).
f(x) = 3x² - 2x and g(x) = + 3
f(g(-4)) = [?]
g(f(2)) = []
f(g(-4)) = 3(-4)^2 -2(-4)
f(g(-4)) = 56
g(f(2)) = + 3 ?
g(f(2))= 3 ???
(I guess you didn't write the whole question, all you have to do is to replace "x" with the given value, in this case for g(f(2)) the given value is 2)
Find the area of the figure below
The area of the shape is 89m²
What is area of shape?The area of a shape is the space occupied by the boundary of a plane figures like circles, rectangles, and triangles.
The original shape is a rectangle and a triangle cut out from it.
The area of the shape = area of rectangle - area of triangle
area of rectangle = 13× 8
= 104m²
Area of the triangle = 1/2bh
= 1/2 × 5 × 6
= 5×,3
= 15m²
therefore area of the shape = 104-15 = 89m²
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Function [tex]y = f(x)[/tex] is continuous on [tex]R[/tex].
The function satisfy [tex]f(x)+x=\int\limits^2_0 {[f(x)-x]} \, dx[/tex]
∀[tex]x[/tex]∈[tex]R[/tex].
Find the value of m so that [tex]\int\limits^2_0 {[mx+f(x)]} \, dx=0[/tex].
A. m = -2
B. m = 0
C. m = -3
D. m = -1
The value of m so that the condition satisfies is -2, the correct option is A.
We are given that;
y=f(x) is continuous
Now,
To find the numbers c that satisfy the conclusion of the Mean Value Theorem, we need to solve the equation:
f’© = [f(2) - f(0)] / (2 - 0)
f’(x) = 8x - 2
f(2) = 4(2)^2 - 2(2) + 3 = 23
f(0) = 4(0)^2 - 2(0) + 3 = 3
f’© = (23 - 3) / (2 - 0)
f’© = 10
8m - 2 = 10
8m = 12
m = 12/8
m = -2
Therefore, by the given function the answer will be -2.
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Suppose you borrow $197,500 on a 30 year adjustable rate mortgage loan. The fixed period is five years and the initial interest rate is 4.25%.
Question 2
Assume that you make all payments exactly as scheduled. How much will you owe at the end of the five year fixed period?
Answer:
Assuming that the loan has monthly payments, the total number of payments in the 30-year loan would be 30 x 12 = 360.
To calculate how much is owed at the end of the five-year fixed period, we need to first determine how much of the principal (the borrowed amount) will be paid off during that time.
Using an amortization calculator, we can determine that with a 4.25% interest rate and monthly payments of $972.38, the principal paid off after five years will be approximately $25,732.37.
At the end of the five-year fixed period, the remaining principal balance will be $197,500 - $25,732.37 = $171,767.63. This will be the amount owed at the end of the fixed period.
Step-by-step explanation:
is the following capacity problem feasible? week 1 2 3 4 5 ri 75 100 200 100 250 ci 100 200 300 50 50
Based on the given information, the capacity problem seems to be infeasible or unrealistic. This is because the resource demands (ci) for week 3, 4, and 5 are significantly higher than the available resources (ri) for those weeks. This implies that there is a problem with capacity constraints and the organization may not be able to meet the demand for those weeks.
Hi there! Based on the given data for capacity (ci) and requirements (ri) over weeks 1 to 5, the capacity problem appears feasible. Here's the comparison for each week:
Week 1: ri = 75, ci = 100 (Capacity is sufficient)
Week 2: ri = 100, ci = 200 (Capacity is sufficient)
Week 3: ri = 200, ci = 300 (Capacity is sufficient)
Week 4: ri = 100, ci = 50 (Capacity is insufficient)
Week 5: ri = 250, ci = 50 (Capacity is insufficient)
The capacity problem is feasible for weeks 1 to 3, but not for weeks 4 and 5, as the capacity is insufficient to meet the requirements in those weeks.
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If P(A) = 0.7, P(B) = 0.8, and P(A or B) = 0.9, find P(A and B).
P(A and B) =
If P(A) = 0.7, P(B) = 0.8, and P (A or B) = 0.9 the value of P (A and B) will be 0.6.
P(A) is the probability of event A happening.
P(A) = 0.7
P(B) is the probability of event B happening.
P(B) = 0.8
P (A or B) is the probability of either A or B happening.
P (A or B) = 0.9
P (A and B) is the probability of both A and B happening.
P (A and B) =?
The formula to find the value of P (A and B) is,
P (A and B) = P(A) + P(B) - P (A or B)
P (A and B) = 0.7 + 0.8 - 0.9
P (A and B) = 1.5 - 0.9
P (A and B) = 0.6.
Therefore, the value of P (A and B) is 0.6.
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List the sample space for rolling a fair seven-sided die.
S = {1, 2, 3, 4, 5, 6, 7}
S = {1, 2, 3, 4, 5, 6, 7, 8}
S = {1}
S = {7}
The sample space for rolling a fair seven-sided die is S = {1, 2, 3, 4, 5, 6, 7}
The sample space for rolling a fair seven-sided die consists of the possible outcomes, which are the numbers that can appear on the die.
Since the die has seven sides, the numbers on the die must range from 1 to 7, inclusive.
Therefore, the sample space is:
S = {1, 2, 3, 4, 5, 6, 7}
Hence, the sample space for rolling a fair seven-sided die is S = {1, 2, 3, 4, 5, 6, 7}
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You will construct the circumcenter. You will need to construct the perpendicular bisectors of AB, BC, and/or AC. Then find the intersection of the perpendicular bisectors to find the point that is equidistant to A, B, and C.
To construct the circumcenter of triangle ABC, we need to find the point that is equidistant to its three vertices A, B, and C. We can do this by constructing the perpendicular bisectors of the sides AB, BC, and AC, and finding their intersection point.
Here are the steps to construct the circumcenter:
Draw triangle ABC.
Construct the perpendicular bisectors of sides AB and BC. To do this, find the midpoint of each side (label them M and N, respectively), and draw a perpendicular line to each side that passes through its midpoint. Label the points where the perpendicular bisectors intersect AB and BC as P and Q, respectively.
Construct the perpendicular bisector of side AC using the same method. Label the point where this bisector intersects AC as R.
Draw lines connecting each vertex of the triangle to the intersection point of the perpendicular bisectors. These lines are the radii of the circumcircle.
The intersection point of the perpendicular bisectors is the circumcenter of triangle ABC. Label this point as O.
Now, we have constructed the circumcenter O of triangle ABC, which is the point that is equidistant to its three vertices A, B, and C.
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A nature trail is 7/10 of a mile long’ lola has walked 1/5 of a mile so far, how many miles does she have left?
Step-by-step explanation:
Im a fifth grader so I gave it my best shot and there might be more steps to it but I'm pretty sure its 2/10
4. Ms. Horvath brought 7 cows averaging 1,250 pounds, 15 steers av- eraging 595 pounds, and 12 heifers averaging 545 pounds to your livestock market. The cows sold for $61.50 per 100 pounds (cwt), the steers for $106 per cwt, and the heifers for $97.75 per cwt. The selling expenses are shown in picture
What did the livestock market pay Ms. Horvath for the cattle?
The amount that the livestock market pay Ms. Horvath for the cattle is $5161.44.
How to calculate the amountThe overall total of selling expenses incurred for cows totaled to $76.06 -- comprised of commission, head charge, beef promotion, and insurance costs, along with vet-testing. In order to calculate the expenditure for steers, we multiplied 0.03 with 630.17, 3 with 15, 1 with 15, and 0.00065 with 630.17; resulting in the final amount of $79.32.
For heifers, similar procedures resulted in a total cost of 64.32, attained by multiplying 0.03 with 532.44, 3 with 12, 1 with 12, and 0.00065 with 532.44.
The gross sum paid to Ms. Horvath amounted to $5,161.44 after subtracting from her cumulative sale price - 7 times 768.75, 15 times 630.17, and 12 times 532.44 - the aggregated total of the running expenditures: $219.70 (or $76.06 + $79.32 + $64.32).
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Question 2 of 5
What is this expression in simplified form?
[tex]\sqrt[3]32[/tex]
which of the numbers 4370, 1885, 3185 can be represented as a sum of any two squares? explain the difference between this problem and ps4, problem 4. when possible find such a representation.
4370 cannot be represented as a sum of any two squares, but 1885 and 3185 can be written as a sum of two squares.
To determine which of the numbers 4370, 1885, 3185 can be represented as a sum of any two squares, we need to check if they can be expressed in the form of a^2 + b^2, where a and b are integers.
For 4370, we can start by checking the squares of integers up to the square root of 4370, which is approximately 66. Since 4370 is not a perfect square, we can check for all pairs of integers up to 66 and see if their sum of squares equals 4370. After checking all possibilities, we find that there are no two squares that add up to 4370.
For 1885 and 3185, we can repeat the same process and find that both of them can be represented as the sum of two squares. Specifically, 1885 can be written as 34^2 + 17^2 and 3185 can be written as 47^2 + 36^2.
The difference between this problem and ps4, problem 4 is that in ps4, problem 4, we were asked to find all possible pairs of integers a and b such that a^2 + b^2 = 2021. In this problem, we are asked to determine which of the given numbers can be represented as a sum of any two squares.
In summary, 4370 cannot be represented as a sum of any two squares, but 1885 and 3185 can be written as a sum of two squares.
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Look at how we construct a confidence interval for a population proportion. One sigma/(sqrt(n)) thing to notice is the effect of sample size on standard error which will effect
the length of the confidence interval. Larger sample sizes will lead to smaller standard errors.
hat p plus/minus z * sigma/(sqrt(n))
Is the following: True or False?
All other things being equal in constructing a confidence interval for a population proportion, the confidence interval constructed using a sample size of n = 500a compared to n = 200 will be a better estimate for the population proportion. That is, the confidence interval will have a shorter length.
True
False
The following statement is true. All other things being equal in constructing a confidence interval for a population proportion, the confidence interval constructed using a sample size of n = 500a compared to n = 200 will be a better estimate for the population proportion.
That is, the confidence interval will have a shorter length. A confidence interval is a range of values that is likely to contain the true value of a population parameter with a certain level of confidence, based on a sample of data. It is commonly used in inferential statistics to estimate the range of values for a population parameter, such as a mean or proportion, based on sample data.
A confidence interval is typically represented by two values, an upper limit and a lower limit, and a confidence level, expressed as a percentage. The confidence level indicates the probability that the true population parameter falls within the interval. For example, a 95% confidence interval indicates that there is a 95% probability that the true population parameter falls within the interval.
The width of the confidence interval depends on the sample size, the variability of the data, and the chosen level of confidence. As the sample size increases, the width of the interval decreases, while increasing the level of confidence increases the width of the interval.
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Given f(x)={-x^3, xc} find the value of c that makes the function continuous
The value of c in the given function f(x)={-x³, xc} that makes the function f(x) continuous is calculated to be c = -1.
For the function f(x) to be continuous, it must be true that:
lim x→c- f(x) = lim x→c+ f(x) = f(c)
Let's first find lim x→c- f(x):
lim x→c- f(x) = lim x→c- (-x³) = -c³
Now, let's find lim x→c+ f(x):
lim x→c+ f(x) = lim x→c+ (xc) = c²
For f(x) to be continuous, it must be true that:
-c³ = c²
Multiplying both sides by -1, we get:
c³ = -c²
Dividing both sides by c² (note that c cannot be 0), we get:
c = -1
Therefore, the value of c that makes the function f(x) continuous is c = -1.
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an online clothing company sells custom sweatshirts. The company charges $4.99 for shipping plus 6 dollars for each sweatshirt. Write a linear function rule that models cost y in dollars for any number of sweatshirts X
Please hurry I’m giving a lot of points
Answer:
6.50x+3.99
Step-by-step explanation:
every order of sweat shirts is charged 3.99
each individual sweatshirt costs 6.50 therefore x being the number purchased times 6.50 is the cost of the sweatshirts that plus the 3.99 is your total cost
Answer: y = $6x + $4.99
Step-by-step explanation:
$4.99 is only used once since you're shipping one load. There are x sweatshirts at the price of $6 each. Y is the total cost when you plug in an amount of sweatshirts for x.
hope this helps!
What is the surface area of the cylinder with height 8 km and radius 7 km? Round your answer to the nearest thousandth.
Answer:
301.593
Step-by-step explanation:
surface area = circumference x height + 2 x circle area
= 4 x 2 x π x 8 + 2 x π x 4^2
= 25.1327412287 x 8 + 6.28318530718 x 16
= 201.06192983 + 100.530964915
= 301.592894745 ≈ 301.593
There are 7 apple pies.
All of the pies are the same size.
3 people will share the pies equally.
How much pie will each person get?
A.
3
7
of a whole pie
B.
3
4
of a whole pie
C.
4
3
of a whole pie
D.
7
3
of a whole pie
The fraction for the given situation is 7/3. Therefore, option D is the correct answer.
Given that, there are 7 apple pies.
3 people will share the pies equally.
Equal share of pie = Number of apple pies/Number of people
Equal share of pie = 7/3
So, the fraction is 7/3 of a whole
Therefore, option D is the correct answer.
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Find the maturity value of a $15,000 investment with a interest rate of 6%, compounded quarterly for 5 years.
a. $21,435.67
b. $22,127.56
c. $20,202.83
d. $23,896.21
The amount in the account after 5 years is $20202.83. Option C is correct.
Solving compound interest problemsGiven the following parameters
Principal = $15,000
Rate r = 6% = 0.06
Time n = 5 years
The formula for finding compound interest is expressed as:
A = P(1 + r/n)^nt
A = 15,000(1 + 0.06/4)^4(5)
A = 15,000(1 + 0.015)^20
A = 15,000(1.015)^20
A = 15,000(1.3469)
A = $20202.83
Hence the amount in the account after 5 years is $20202.83
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Serena is measuring the length of beetles for a science project .One beetle measures 4/5 cm and another measure 7/10 cm. What is the difference in the beatles length
The difference in the Beatles length is 1 / 10 centimetres.
How to find the difference in the beetles length?Serena is measuring the length of beetles for a science project .One beetle measures 4/5 cm and another measure 7/10 cm.
Therefore, the difference in the beetles length can be calculated as follows:
Hence,
difference between the beetles length = 4 / 5 - 7 / 10
difference between the beetles length = 8 - 7 / 10
difference between the beetles length = 1 / 10 centimetres
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In ΔDEF, d = 5.2 inches, e = 6.8 inches and ∠F=166°. Find the length of f, to the nearest 10th of an inch.
The length of f is 11.9 ft.
We have,
d = 5.2 inches, e = 6.8 inches and ∠F=166°.
Using the law of cosines as:
f² = d² + e² - 2(de)(cos(F))
So, f² = (5.2)² + (6.8)² - 2(5.2)(6.8)cos(166)
f² = 27.04 + 46.24 - 66.56 cos (166)
f² = 73.28 - 66.56 cos 166
f = √(73.28 - 66.56 cos 166)
f ≈ 11.9 inch.
Thus, the length of f is 11.9 ft.
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The Federal Pell Grant Program gives grants to low-income undergraduate students. According to the National Postsecondary Student Aid Study conducted by the U.S. Department of Education in 2008, the average Pell grant award for 2007-2008 was $2,600. We wonder if the mean amount is different this year for Pell grant recipients at San Jose State University. Suppose that we randomly select 50 Pell grant recipients from San Jose State University. For these 50 students, the mean Pell grant award is $2,450 with a standard deviation of $600. Let μ = the mean amount of Pell grant awards received by San Jose State University Pell grant recipients this year. We test the following hypotheses. The sample size is greater than 30, so a t-model is a good fit for the sampling distribution. Use this information to answer the next two questions.
a. What is the t-test statistic? If necessary, round to two decimal places.
b. What is the P-value?
a. To find the t-test statistic, we first need to calculate the standard error of the mean using the formula: standard deviation / square root of sample size. In this case, the standard error of the mean is 600 / square root of 50, which is approximately 84.85.
Then, we can calculate the t-test statistic using the formula: (sample mean - hypothesized population mean) / standard error of the mean. In this case, the t-test statistic is (2450 - 2600) / 84.85, which is approximately -1.77.
b. To find the P-value, we need to consult a t-distribution table or use statistical software. Using a two-tailed t-test with 49 degrees of freedom (50-1), we find that the P-value associated with a t-test statistic of -1.77 is approximately 0.084. Therefore, there is a 8.4% chance of obtaining a sample mean of $2,450 or less if the true mean amount of Pell grant awards received by San Jose State University Pell grant recipients this year is actually $2,600.
Note: A common threshold for statistical significance is a P-value of less than 0.05. Since the P-value in this case is greater than 0.05, we cannot reject the null hypothesis and conclude that there is sufficient evidence to support the claim that the mean amount of Pell grant awards received by San Jose State University Pell grant recipients this year is different from $2,600.
a. To find the t-test statistic, we will use the following formula:
t = (sample mean - population mean) / (sample standard deviation / sqrt(sample size))
Here, sample mean = $2,450, population mean = $2,600, sample standard deviation = $600, and sample size = 50.
t = ($2,450 - $2,600) / ($600 / sqrt(50))
t = (-$150) / ($600 / 7.071)
t = (-$150) / $84.85
t ≈ -1.77
The t-test statistic is approximately -1.77.
b. To find the P-value, we need to use a t-distribution table or software to determine the probability of obtaining a t-test statistic as extreme or more extreme than our calculated value. We are doing a two-tailed test, so we need to find the area in both tails.
Looking up the t-test statistic -1.77 in a t-distribution table with 49 degrees of freedom (sample size - 1), we find the P-value is between 0.05 and 0.10. For a more accurate P-value, use software or an online calculator.
So, the P-value is between 0.05 and 0.10.
Which formula can be used to find the volume, V , of the opposite solid figure represented below
Answer:
Step-by-step explanation:
b
2. Factor 12³ + 60x² + 75x.
The factorization of 12x³+60x²+75x is 3x(2x+5)² ( optionD).
What is factorization?Factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
To factorize, we have to find the common factor between the terms and bring it out. For example in 2x+6, the common factor is 2,
therefore 2x+6 = 2( x+3)
Factorising 12x³+60x²+75x is
3x( 4x²+20x+25)
4x² +20x +25 can also be further factorize
= 4x²+10x+10x+25
= (4x²+10x) (10x+25)
2x( 2x+5) 5(2x+5)
4x²+10x+25 =( 2x+5)²
therefore 12x³+60x²+75x = 3x(2x+5)²
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Help me find what X is
Answer:
x = 68°
Step-by-step explanation:
There is Two Option:
Option One: Looking at the side length we can determine that the triangle is an isosceles triangle. Which mean two angle/side are the same.
Use the Degree Angle to solve for x.
56 + 56 + x = 180
x + 112 = 180
x = 68°
Option Two: Using Law of Sine
[tex]\frac{A}{sin(A)}=\frac{B}{sin(B)} =\frac{C}{sin(C)}[/tex]
[tex]\frac{4.5}{sin(x)} =\frac{4}{sin(56)}[/tex]
[tex]sin(x)=\frac{sin(56)}{4} *4.5[/tex]
[tex]x=sin^{-1}(\frac{4.5*sin(56)}{4})[/tex]
x = 68°