Construct 98% confidence intervals based on the following data: 49, 38, 67, 69, 58, 70, 66, 85.​

Answers

Answer 1

Answer:

May I have a little more context please?

Step-by-step explanation:


Related Questions

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

A. obtuse

Step-by-step explanation:

This is because in an obtuse angled triangle one of its angle is greater than 90° and here angle RQS = 112° which is greater than 90°, so it's a obtuse triangle.

Answer:

A. obtuse triangle

Step-by-step explanation:

the degree of RQS is greater than 90º

z + y2
for y = 6 and z = 1

Answers

Answer:

37

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

z + y²

y = 6

z = 1

Step 2: Evaluate

Substitute in variables:                                                                                     1 + 6²Evaluate exponents:                                                                                         1 + 36Add:                                                                                                                   37

determine whether ABCD is a parallelogram The vertices are A(-2,3) , B(3,2), C(2,-1) and D(-3,0)

Answers

Answer:

Yes, this is a parallelogram

Step-by-step explanation:

- Kirk is reading a book and found that after 5 days he had read 180 pages.
rate is Kirk reading the book in (b) If the book is 765 pages long, how many
days will it take him to read the book at
the rate you found in (a)?

Answers

Answer:

21.25 days

Step-by-step explanation:

We first need to find the rate that he read the book for the first 5 days:

180 (pages)/5 (days)= 36

So he reads 36 pages a day. Now we need to find how many days it will take him to read the whole book, while reading 36 pages a day.

765 (total pages)/36 (pages he reads in a day) = 21.25

Have a wonderful day, my friend.

Aliyah is a textbook salesperson. Last week she made $1,200 in commission. If she sold $8,000 worth of text books, what percent is her commission?​

Answers

Answer:

1200/8000=0.15 so 15%

Step-by-step explanation:

........

Answer please I would appreciate it :)

Answers

Answer:

136 units²

Step-by-step explanation:

5x7=35

5x7=35

6x7=42

1/2(4)(6)=12

1/2(4)(6)=12

35+35+42+12+12=136

XYZ Corporation recorded the number of employee absences each week over a period of 10 weeks. The result is the data list 5, 3, 4, 1, 4, 7, 2, 6, 3, 5. Find the standard deviation of the number of absences each week.

Answers

Answer:

4 ansences

Step-by-step explanation:

40 / 4 is 10 so ans is 10 absences

What is the equation of the line in slope-intercept form?

Answers

Answer:

y = -3x + 4

Step-by-step explanation:

y = mx + b

y = y coordinate

m = slope (rise/run, up/over, change in y/change in x)

x = x coordinate

b = y intercept (where the line crosses the y-axis.

1. Write the equation                                                            y = mx + b

2. Substitute the numbers in the proper place.                y = 3/1 x + 4

3. Check for the type of slope- (positive or negative)      y = -3x + 4

    (Downhill slopes are always negative.)

Are 6(n + 3) - 4 and 6n + 14 equivalent expressions?​

Answers

Answer:

yes

Step-by-step explanation:

because if you multiply 6 and n it is 6n and 6 x 3 are 18 but subtract 4 and it is correct

yes, they are because they both have a sum of 20

Help&EXPLAIN

Don’t use for points or will be reported and I’ll take the points back

Answers

Answer:

B = 243°

Step-by-step explanation:

Full revolution = 360°

360 - 117 = 243

Answer:

243 degrees

Step-by-step explanation:

The angle of a full circle = 360 degrees

360 - 117 = 243

You are the coach of a basketball team that is currently looking for new players. One of the criteria for selection as a player is that the person must be above a particular height. Ideally, you want your next player to be as tall as possible. However, you do not want to rule out any potential players by making the cut-off height too strict. You decide that accepting players within the top 2.5% height bracket will be reasonable for your team. Assume that the height of all people follows a normal distribution with a mean of 69 in and a standard deviation of 2.9 in. Calculate the cut-off height (C) that ensures only people within the top 2.5% height bracket are allowed into the team. you may find this standard normal table useful. Give your answer in inches to the nearest inch.
C= _____ in

Answers

Answer:

C = 75 in

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Assume that the height of all people follows a normal distribution with a mean of 69 in and a standard deviation of 2.9 in.

This means that [tex]\mu = 69, \sigma = 2.9[/tex]

Calculate the cut-off height (C) that ensures only people within the top 2.5% height bracket are allowed into the team.

This is the 100 - 2.5 = 97.5th percentile, which is X when Z has a pvalue of 0.975, so X when Z = 1.96.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]1.96 = \frac{X - 69}{2.9}[/tex]

[tex]X - 69 = 1.96*2.9[/tex]

[tex]X = 74.7[/tex]

Rounded to the nearest inch,

C = 75 in

Whats the square root of 826 also looking for a minecraft girI needs to be 15 or older

Answers

Answer:

28.740,

Step-by-step explanation:

Answer:

28.7 and plus dont use people for internet gaming sidechicks its just wrong go find someone that can actually be there for you

Step-by-step explanation:

Explain your answer !!
Have a nice day

Will give braisnlt

Answers

Answer:

x = 4 and y = 1

Step-by-step explanation:

The given equations are :

2x+5y = 13 ...(1)

3x-2y = 10 ...(2)

We can use elimination method to solve the given equations.

Multiply equation (1) by 3 and equation (2) by 2.

6x+15y=39 ...(3)

6x-4y=20 ...(4)

Subtract equation (3) from (4).

6x-4y-(6x+15y) = 20-39

6x-4y-6x-15y = -19

-19y=-19

y = 1

Put the value of y in equation (1).

2x+5y = 13

2x+5=13

2x=8

x = 4

So, the solution of the given equations are x = 4 and y = 1.

Explain your answer !!
Have a nice day

Will give braisnlt

Answers

Answer:

Equations:

[tex]4H + 3P = 13.75[/tex]

[tex]2H + 5P = 11.25[/tex]

[tex]H = 2.50[/tex] --- Hot dog

[tex]P = 1.25[/tex] --- Pretzel

Step-by-step explanation:

Represent hot dogs with H and Pretzels with P.

For Tina:

[tex]4H + 3P = 13.75[/tex]

For Doug:

[tex]2H + 5P = 11.25[/tex]

Solving for the price of both items:

We have:

[tex]4H + 3P = 13.75[/tex] --- (1)

[tex]2H + 5P = 11.25[/tex] --- (2)

Multiply (2) by 2

2 * ([tex]2H + 5P = 11.25[/tex])

-------------------

[tex]4H + 10P = 22.50[/tex] --- (3)

Subtract (3) from (1)

[tex]4H + 3P = 13.75[/tex]

[tex]4H + 10P = 22.50[/tex]

----------------------

[tex]4H - 4H + 3P - 10P = 13.75 - 22.50[/tex]

[tex]3P - 10P = 13.75 - 22.50[/tex]

[tex]-7P = -8.75[/tex]

Solve for P

[tex]P = \frac{-8.75}{-7}[/tex]

[tex]P = 1.25[/tex]

Substitute 1.25 for P in (2)

[tex]2H + 5P = 11.25[/tex]

[tex]2H + 5 * 1.25 = 11.25[/tex]

[tex]2H + 6.25 = 11.25[/tex]

Collect Like Terms

[tex]2H = 11.25-6.25[/tex]

[tex]2H = 5[/tex]

Solve for H

[tex]H = \frac{5}{2}[/tex]

[tex]H = 2.50[/tex]

I need help with algebra 20 points

Answers

Answer:

4s

Step-by-step explanation:

s is the original number of stickers, and since she wants four times as many stickers, you just multiply by 4 so you get 4s

y = 3x +4
y = -2
A method by solving systems of equations by adding or subtracting to eliminate a variable

Answers

Plug in -2 for y then solve for x. The answer should be x= -2

Find the area of the composite figure. First, find the area of the triangle. 3 cm Triangle Area = [?] cm2 6 cm Rectangle Area = [] cm2 9 cm Total Area of Composite Figure = [ ] cm2 Enter​

Answers

Answer:

The area of the triangle is 9 and the area of the regtangle is 54 so when you add them you will get 63 i hope it will help!

Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below. Tobias got a score of 84.584.5; this version has a mean of 66.966.9 and a standard deviation of 1111. Kiersten got a score of 281.8281.8; this version has a mean of 261261 and a standard deviation of 2626. Pierce got a score of 7.697.69; this version has a mean of 7.27.2 and a standard deviation of 0.70.7. If the company has only one position to fill and prefers to fill it with the applicant who performed best on the aptitude test, which of the applicants should be offered the job?

Answers

Answer:

Tobias should be offered the job.

Step-by-step explanation:

Z-score:

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

The applicant with the highest z-score should be chosen.

Tobias:

Score of 84.5, in a version with mean 66.9 and standard deviation 11. His z-score is found when [tex]X = 84.5, \mu = 66.9, \sigma = 11[/tex]

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{84.5 - 66.9}{11}[/tex]

[tex]Z = 1.6[/tex]

Kiersten:

Score of 281.8, in a version with mean 261 and standard deviation 26. His z-score is found when [tex]X = 281.8, \mu = 261, \sigma = 26[/tex].

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{281.8 - 261}{26}[/tex]

[tex]Z = 0.8[/tex]

Pierce:

Score of 7.69, version with mean 7.2 and standard deviation 0.7. His z-score is found when [tex]X = 7.69, \mu = 7.2, \sigma = 0.7[/tex].

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{7.69 - 7.2}{0.7}[/tex]

[tex]Z = 0.7[/tex]

Due to the higher z-score, Tobias should be offered the job.

A satellite weighs 150 pounds on Earth. Using
the table above, how much more does this
satellite weigh on Saturn than on Mars?

Answers

where is the table? i need the table to be able to answer your question

Estimate √40 to the nearest tenth. *

A. 6.9
B. 6.3
C. 7.1
D. 5.7

Answers

B. 6.3
You can type root 40 into your calculator and will get 6.32455532. To round to the tenth is taking the first number after the decimal (3) and seeing of the number to the right of it (2) is less than 5 or greater than or equal to 5. 2 is less than 5 so 3 stays the same.

Tara wants to draw rectangles that each have an area of 24 square inches. The length and width of each rectangle are whole numbers of inches.​

Answers

Answer:

it could be the width is 8 and the length is 3

Step-by-step explanation:

3 x 8= 24 hope this helps

The graph shows the relationship between sugar and water in a fruit punch recipe.
Write an equation to represent the graph in terms of y and x.
(PLEASE HELP ME)

Answers

Answer:

41

Step-by-step explanation:

The answer will be 42

what is the slope of the line that passes through the points (5,9)and (-3,9).

Answers

Answer:

[tex]\displaystyle m=0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (5, 9)

Point (-3, 9)

Step 2: Identify

x₁ = 5, y = 9

x₂ = -3. y = 9

Step 3: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]:                                                              [tex]\displaystyle m=\frac{9-9}{-3-5}[/tex][Slope] [Fraction] Subtract:                                                                               [tex]\displaystyle m=\frac{0}{-8}[/tex][Slope] [Fraction] Divide:                                                                                  [tex]\displaystyle m=0[/tex]

what is -1 3/10 + (-3.8) show your work

Answers

Step-by-step explanation:

Sln

-13/10 +(-3.8)(remove bracket)

-13/10-3.8(then divide )

-1.3-3.8

-51

The given term -1 ³/₁₀ + (-3.8) can be simplified as -5.1.

What is Simplification?

Simplification in mathematical terms is a process to convert a long mathematical expression in simple and easy form.

The given term is,

-1 ³/₁₀ + (-3.8)

First simplify fraction term,

-13/10 + (-3.8)

Solve bracket term,

-13/10 - 3.8

Use least common multiple approach to solve further,

= (-13-38)/10

= -51/10

= -5.1

The expression -1 ³/₁₀ + (-3.8) can be simplified as -5.1.

To know more about Simplification on :

https://brainly.com/question/2804192

#SPJ2

Calculus BC Help - Series
6. Let f be the function defined by f(x)=1x2+9.

(a) Evaluate the improper integral ∫∞3f(x) dx, or show that the integral diverges.
(b) Determine whether the series ∑n=3∞f(n) converges or diverges. State the conditions of the test used for determining convergence or divergence.
(c) Determine whether the series ∑n=1∞(−1)n(en⋅f(n))=∑n=1∞(−1)n(n2+9)en converges absolutely, converges conditionally, or diverges.

Answers

Answer:

So you have a power of x^2, notice if you have a harmonic series, or if it looks familiar, which it should, hint (1/x) Now integrate: let u= x/3 dx=3dunow integral (1/u^2+1) recognize thats arcso you get a result of: arctan(x/3)/3+c

what is 30% of 70?

I am confused

Answers

Answer:

21

Step-by-step explanation:

Answer:

Its 21

Step-by-step explanation:

y = 2x + 4 and y = 3x
+ 2

Answers

2x+4=3x+2
2x=3x-2
-1x=-2
X=2
Hope this helps!

Sam traveled 56 miles in 8 hours. If he traveled at the same rate on the next day,how far can he go the next day,how far could he go in 14 hours.​

Answers

Answer:

Step-by-step explanation:

56 miles/(8 hours) = 7 miles/hour

14 hours × 7 miles/hour = 98 miles

Tally marks are always
recorded in bunches of
(4 5 1 2)​

Answers

Answer:

what is the ?

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

100 POINTS PLZ HELP ME

This graph shows a proportional relationship.




What is the constant of proportionality?


Enter your answer as a ratio in simplified form by filling in the boxes.


$$


A graph with a line running through coordinates left parenthesis 0 comma 0 right parenthesis and coordinates left parenthesis 1 over 4 end fraction comma 3 over 8 end fraction right parenthesis.

Answers

Answer:

I dont see a graph, but the constant of proportionality the ratio between two directly proportional quantities. two quantities are directly proportional when they increase and decrease at the same rate

Step-by-step explanation:

if you add a graph, ill edit my answer

hope this helps!

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