Answers
1) b. They all learning apps that help you understand problems if any subject. It also has online tutors to help you.
2. To insert a square root, just type \sqrt and then the Enter or Tab key to insert the square root symbol.
Related Questions
The average daily volume of a computer stock in 2011 was million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of trading days in 2014, he finds the sample mean to be million shares, with a standard deviation of s million shares. Test the hypotheses by constructing a % confidence interval. Complete parts (a) through (c) below. (a) State the hypotheses for the test. : mu equals million shares : mu not equals million shares (b) Construct a % confidence interval about the sample mean of stocks traded in 2014. The lower bound is nothing million shares. The upper bound is nothing million shares. (Round to three decimal places as needed.) (c) Will the researcher reject the null hypothesis?
Answers
Complete question :
The average daily volume of a computer stock in 2011 was p = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 40 trading days in 2014, he finds the sample mean to be 30.9 million shares, with a standard deviation of s = 11.8 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through (c) below. State the hypotheses for the test. Construct a 95% confidence interval about the sample mean of stocks traded in 2014.
Answer:
H0 : μ = 35.1 ;
H1 : μ < 35.1 ;
(26.488 ; 35.312)
Step-by-step explanation:
The hypothesis :
H0 : μ = 35.1
H1 : μ < 35.1
The confidence interval :
Xbar ± Margin of error
Xbar = 30.9
Margin of Error = Zcritical * s/sqrt(n)
Zcritical at 95% = 1.96
Margin of Error = 1.96 * (11.8/sqrt(40))
Margin of Error = 4.412
Lower boundary :
30.9 - 4.412 = 26.488
Upper boundary :
30.9 + 4.412 = 35.312
Confidence interval = (26.488 ; 35.312)
Since the population mean value exists within the interval, the we fail to reject the Null.
Find the volume of triangular prism. NO LINKS
Answers
Answer:
504
Step-by-step explanation:
hii i’ll give brainliest please help thanks :)
Answers
Answer:
b
Step-by-step explanation:
I recommend a show you should watch it’s called criminal minds
Which expression is equivalent to
Answers
Answer:
it is not clear i cant see well the question
Step-by-step explanation:
100 ÷ half of 20 = What is the answer and steps Half of 20 means 10 but in BODMAS rule of means multiplication So please tell steps also
Answers
Answer:
it's 10 but i do'nt know the rule i'm sorry
Step-by-step explanation:
Simplify the expression below.
(xy)^8
A.
xy^8
B.
x^8y^8
C.
8xy
D.
8xy^8
Answers
Answer: B. x^8y^8
Have a great day.
Which expression is equivalent to 4(3n -5)?
Answers
Answer:
12n-20
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
sorry i dont know the answer
Step-by-step explanation:
IN DESPERATE NEED OF HELP!!!! TIMED TEST!!! WILL GIVE BRAINLYEST!! No links or I will report u
Answers
Answer:
a) Slope is -4/3 y-intercept is 2
b) Slope is 2 y-intercept is -1
Step-by-step explanation:
y=mx+c
m=gradient (or in this case slope)
c=y-intercept
hello please help i’ll give brainliest
Answers
Answer:
1. 1
2. 6
3. 3 or 4
Step-by-step explanation:
Answer:
1. 8 families have 3 children
2. 25 families are represented in the dot plot.
3. 20 families have less than 4 children
whoever has the right answers for ALL will get brainiest and all points
Answers
Answer:
1st: Equal to
2nd: Greater than
3rd: Less than
Answer:
Step-by-step explanation:
So the second problem 325 x 1 2/3 is greater then 325
and the third problem 325 x 1/4 is equal to 325Which of the following statements is true based on the data set shown below?
median = mode
mean = median
mode = mean
Answers
Answer:
median=mode
Step-by-step explanation:
I just did it.
Answer:
median=mode
Step-by-step explanation:
Una pelota sale disparada desde el nivel del suelo, con una velocidad de 40 m/s y un ángulo de elevación de 50°. a) Calcule la altura máxima que alcanza la pelota
Answers
Respuesta:
Los 47.85m
Explicación paso a paso:
Altura máxima = u²sin²Ф / 2g
Dado
velocidad u = 40 m / s
Ф = 50 °
g = 9,81 m / s²
Sustituir'
H = 40²sin²50 / 2 (9,81)
H = 1600 (0,7660) ² / 19,62
H = 1600 (0,5868) /19,62
H = 938,8096 / 19,62
H = 47,85 m
Por lo tanto, la altura máxima es de 47,85 m.
The green object below,is best defined as a ___ named____.
Answers
The green object below, is best defined as a Ray named AC.
In geometry, a ray is a part of a line that consists of a single initial point called the endpoint and extends infinitely in one direction. It can be thought of as a half-line, with one end point and the other end extending infinitely.
Rays are named using two points, with the endpoint being mentioned first.
Here, in the figure the green line has one point A and the next C and it is further extending.
Thus, the Green line is a Ray name as ray AC.
Learn more about ray here:
https://brainly.com/question/13144568
#SPJ2
Alex brought 48 cookies to school to celebrate his birthday. He gave 9 to teachers. He then shared equally the remaining cookies with his 18 classmates. How many cookies remained?
Answers
Answer:
3 cookies
Step-by-step explanation:
After he gave nine cookies to teachers,he have 39 cookies left.He shared 36 cookies to his 18 classmates at the rate of 2 cookies per person.Then,3 cookies remained.I may be wrong but,it is answer according to me.
hope it helps u and keep smiling :)
pleaseeeeee help
do not scam me
marking brainlist
Answers
Answer:
mirror x than mirror y i guess
Step-by-step explanation:
Shonda earns $10 per hour at Sneakers Plus. She is also paid a $2 commission on every pair of sneakers she sells. How much did Shonda earn if she worked 6 hours and sold 9 pairs of sneakers?
Answers
Answer:
78
Step-by-step explanation:
6*10=60
2*9=18
60+18=78
Find the Area in terms of pi
Answers
Answer:
121 π
Step-by-step explanation:
A= π * r^2
r^2 = 121 * π
Willl give brainlyist if quick its timedd
Answers
Answer:
feel like its C
Step-by-step explanation:
Melinda takes out a loan to purchase a car. The balance on her loan after x months is represented by the equation y = 10,000 – 250x and the value of the car after x months is represented by y = 8,000 – 50x. Which statement describes when Melinda’s loan will be equal to the value of the car?
After 10 months, the loan and value of the car will both be equal to $7,500.
After 12 months, the loan and value of the car will both be equal to $7,000.
After 14 months, the loan and value of the car will both be equal to $6,500.
After 16 months, the loan and value of the car will both be equal to $6,000.
Answers
Answer:
lol
Step-by-step explanation:
Which of the following could be a zero of f(x)=x4-10x3+35x2-50x+24
Answers
Answer:
this answer is
Step-by-step explanation:
Invisible
What is the range of the following graph? Please don’t put down any links.
Answers
Answer:
[-4, infinity)
Step-by-step explanation:
The range is all the y values. The minimum is -4, and the maximum is infinity because there are arrows pointing upwards.
A dodecagonal pyramid has a surface area of 130 square inches. A similar dodecagonal pyramid has a surface area of 2080 square inches. If the larger pyramid has a height of 32, what is the height of the smaller dodecagonal pyramid?
Answers
Answer:
8 in.
Step-by-step explanation:
The ratio of the surface areas is equal to the square of the ratio of the heights
Let h = the height of the smaller dodecagonal pyramid
So, [tex]\frac{2080}{130} = \frac{32^{2}}{h^{2} }[/tex]
[tex]h^{2} = \frac{32^{2} * 130 }{2080}[/tex]
[tex]h^{2} = 64[/tex]
h = 8 in.
there are 400 3rd graders,4th,and 5th graders if 187 of the students are 3rd graders and 99 of the students are 4th graders,how many students are 5th graders
Answers
Answer:
144
Step-by-step explanation:
brainliest plz it would really help out
Answer: 114 5th graders
Step-by-step explanation:
400 total
187 3rd graders
99 4th graders
187 + 99 = 286
400 - 286 = 114
which statement about 307° is correct?
a. sin 307° > 0
b. cos 307° < 0
c. tan 307°<0
Answers
Answer: C. tan 307°<0
Step-by-step explanation: Quizzed
Which of the following is a statistical question?
A.
How many pages did Barry read last night?
B.
How many siblings does James have?
C.
How many miles does an elephant walk in a day?
D.
How old is Alisha?
Answers
Answer:
b
Step-by-step explanation:
Answer:
D.how old is Alisha
Step-by-step explanation:
A statistical question is something that can be answered by collecting data. For example how old am i? is not a statistical question.
a) If a/b=3/4, find: 6a+b/3a+2b
Answers
Answer:
22/17
Step-by-step explanation:
If a/b = 3/4, then a = 3 and b = 4.
6a + b/3a + 2b
Substitute the variables.
6(3) + 4/3(3) + 2(4)
Multiply 6 and 3, 3 and 3, and 2 and 4.
18 + 4/9 + 8
Add 18 and 4, 9 and 8.
22/17.
Leslie had 30 pieces of bubblegum. Each piece of bubblegum cost $.12 each. What was the total she paid for all 30 pieces of bubblegum?
Answers
Step-by-step explanation:
30 pieces of bubblegum
each piece: $.12
Total paid = 30 × $.12
Answer: $3.60
14. A normal distribution has a mean of 700 and a standard deviation of 35. What is the
probability that a value selected at random is at most 630?
Answers
Answer: 0.025
Step-by-step explanation:
Can someone help me solve this pls
Answers
Answer: that’s an acute angle
Step-by-step explanation:
One out of eight students wore white. What percent of the students wore white?
A. 18%
B. 12.5%
C. 9%
D. 0.125%
Answers
Answer:
B
Step-by-step explanation:
100/8 = 12.5