A large university with over 40,000 students recently took a survey in which 31% of the students claimed to exercise at least 3 times a week. A simple random sample of 250 students was selected. Let p hat = the proportion of students in the sample who claimed to work out at least 3 times a week. What is the standard deviation of the sampling distribution of p hat ? Enter your answer as a decimal rounded to the hundredths place. The standard deviation of the sampling distribution of p hat is

The  shape of the sampling distribution of p hat is approximately Normal, because we would expect at least 10 success and 10 failures

The probability distribution of a statistic that is acquired by repeated sampling of a particular population is called the sampling distribution. It outlines a variety of potential possibilities for a statistic, such as the mean or mode of a population's mean or mode of some variable.

approximately Normal, because we would expect at least 10 success and 10 failures. because they are dividing three times a week

A typical probability distribution in the natural world is the normal distribution, sometimes known as the bell curve. When the sample size is high enough, scientists often assume that a sequence of measurements obtained from a population would be regularly distributed.

The complete question is : A large university with over 40,000 students recently took a survey in which 31% of the students claimed to exercise at least 3 times a week. A simple random sample of 250 students was selected. Let p hat = the proportion of students in the sample who claimed to work out at least 3 times a week. What is the shape of the sampling distribution of p hat and why?

A. approximately Normal, because all sampling distributions are approximately Normal

B. approximately Normal, because we would expect at least 10 success and 10 failures

C. skewed to the right, because 0.31 is lower than 0.5

D. skewed to the left, because 0.31 is lower than 0.5

To learn more about sampling distribution refer to :

https://brainly.com/question/12892403

#SPJ1

Janae solved the equation 3.67 = c − 2.13 , and found the value for c. Janae's solution was c =1.54 Do you agree or disagree with her solution. Explain. Show your work.

-2x + y=-15. y=5x solved by substitution

Pls help I’ll mark brainliest

Find the value of x in the parallelogram below.

Whats 2x36 PLEASE HELP ILL GIVE BRAINLYEST

The New York Times and CBS News conducted a nationwide poll of 1048 randomly selected 13- to 17-year-olds. We can consider the sample to be a SRS.
a. Of these 1048 teenagers, 692 had a television in their room. Give a 95% confidence interval for the proportion of all people in this age group who had a TV in their room at the time of the poll
b. Of the 1048 teens surveyed, 189 named Fox as their favorite television network. Give a 90% confidence interval for the proportion of all people in this age group who would choose Fox as their favorite network.
c. Suppose you were to change the confidence level in (b) to 95% using the same sample. How would the confidence interval change? No calculations necessary.
a. The confidence interval would be the same width but shifted to the left
b. The confidence interval would be the same width but shifted to the right
c. The confidence interval would have the same center but be wider
d. The confidence interval would have the same center but be narrower

⊕║Using Sampling to Predict Lesson 10-5║ ⊕


To determine how many students at a middle school bring their lunch from home, all the students on one school bus are surveyed. identify if this is BIASED OR UNBIASED. Explain your reasoning!!

pls help pls help plsssssss

How
many solutions does the equation 4X + 8 = - 2 - 2 + 5x have?
Two
® One
Zero
Infinitely many

1600, 400, 100, 25, ...
O Arithmetic
O Geometric
O Neither

PLEASE HELP

What is the domain of a quadratic functions that opens up or down?

Which statement must be correct?
A.
B.
C.
D.

Enter a value of b that will make the expression factorable.
x2^ + bx – 40

whats the square footage of 10 by 10​

Anyone can help please?

Can someone help me with this its preatty easy

Can someone please help me is the last one☝ that k need

Find the area of each figure. A = _ in²

Find the mean of the set of data.
3, 3, 8, 3, 8, 3, 8, 8, 1,3
The mean is ?? HELP WILL MARK BRAINLIEST

A new car costs $28,000. It is expected to depreciate at an average rate of 8% per year.
Find the value of the car in 8 years.

HELP PLEASE! MATHHHHGGKSNSJSJ

Which of the following sequences of transformations maps KLMN onto ABCD

COMMON CORE REVIEW
1. Find the percent of change from 32 feet to 79 feet. Round to the nearest tenth, if necessary. Then state whether the percent of change is percent of increase or percent of decrease.
2. Factor this expression: 27+108n
3. Factor this expression: 56x + 16

THANKS AGAIN!!

Lester made a scale drawing of a house. The scale he used was 1 inch : 2 feet. In the drawing, the hall closet is 3 inches long. What is the length of the actual closet?

Victor sells bouquets of flowers at a farmers market. He earns a flat rate for each bouquet sold, shown on the graph below. The table below shows the number of bouquets Victor sold last week. Fill in the table to show how much money Victor earned.

Please answer now! i will mark brainliest!

in her kayak bunny can travel 70 miles downstream with the current in 5 hours. the return trip against the current takes 7 hours. find the speed of the kayak in Stillwater and the speed of the current​

Pearl deposited $60 into her savings account. According to the rule of 72, what interest rate will cause her money to double in approximately 33 years?

A garden is in the shape of a circle with a radius of 10 feet. Edging is place around the garden. How much edging, in feet, is needed to
go around the garden? Round your answer to the nearest whole number. Use 3. 14 for TT.
please!! I need it right jnow

The price of an item has risen to $184 today. Yesterday it was $80. Find the percentage increase.