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QUESTION 4 4% of the world population has an outie belly button. In a random sample of 50 people, the proportion of people with an outie belly button was found. The sampling distribution of p is O A. approximately normal because p is always approximately normal O B. normal because is always normal O C. not normal because np <5 O D. approximately normal because n(1-p) > 5 O E. approximately normal because the sample size is more than 30

QUESTION 4 4% of the world population has an outie belly button. In a random sample of 50 people, the proportion of people with an outie belly button was found. The sampling distribution of p is O A. approximately normal because p is always approximately normal O B. normal because is always normal O C. not normal because np <5 O D. approximately normal because n(1-p) > 5 O E. approximately normal because the sample size is more than 30

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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## Question 4 4% of the world population has an outie belly button. In a random sample of 50 people, the proportion of people with an outie belly button was found. The sampling distribution of \(\bar{p}\) is ____. - A. approximately normal because \(\bar{p}\) is always approximately normal - B. normal because \(\bar{p}\) is always normal - C. not normal because np < 5 - D. approximately normal because n(1-p) > 5 - E. approximately normal because the sample size is more than 30 ## Question 5 In a study of 50 customers that entered a store, 22 were female. What is the margin of error for a 74.58% confidence estimate for the proportion of female customers, rounded to four decimal places? - A. 0.0468
Transcribed Image Text:## Question 4 4% of the world population has an outie belly button. In a random sample of 50 people, the proportion of people with an outie belly button was found. The sampling distribution of \(\bar{p}\) is ____. - A. approximately normal because \(\bar{p}\) is always approximately normal - B. normal because \(\bar{p}\) is always normal - C. not normal because np < 5 - D. approximately normal because n(1-p) > 5 - E. approximately normal because the sample size is more than 30 ## Question 5 In a study of 50 customers that entered a store, 22 were female. What is the margin of error for a 74.58% confidence estimate for the proportion of female customers, rounded to four decimal places? - A. 0.0468
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