online maintains a telephone help line to assist customers who are assembling their bicycle. The company keeps detailed records of the percentage of customers who purchase a bicycle who call in for help. The company claims that 18% of all customers who purchase a bicycle call the help line. a. Let p = the proportion of customers in a sample who call the help line. Calculate the mean and standard deviation of the sampling distribution of p for random samples of size 150 from this population. b. Interpret the standard deviation from part (a). c. Would it be appropriate to use a normal distribution to model the sampling distribution of p? Justify your answer.
online maintains a telephone help line to assist customers who are assembling their bicycle. The company keeps detailed records of the percentage of customers who purchase a bicycle who call in for help. The company claims that 18% of all customers who purchase a bicycle call the help line. a. Let p = the proportion of customers in a sample who call the help line. Calculate the mean and standard deviation of the sampling distribution of p for random samples of size 150 from this population. b. Interpret the standard deviation from part (a). c. Would it be appropriate to use a normal distribution to model the sampling distribution of p? Justify your answer.
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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Given that
n=150, p=18%=0.18, q=1-0.18=0.82
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