The All Ages Records shop finds that 80% of customers entering the store do not make a purchase. One evening 180 people, who can be regarded as a random sample of all customers, enter the store. a) Find the mean of the sample proportion of customers making a purchase. b) Find the standard error of the sample proportion of customers making a purchase.] c) Find the probability that the sample proportion of customers making a purchase is less than 0.15.||
The All Ages Records shop finds that 80% of customers entering the store do not make a purchase. One evening 180 people, who can be regarded as a random sample of all customers, enter the store. a) Find the mean of the sample proportion of customers making a purchase. b) Find the standard error of the sample proportion of customers making a purchase.] c) Find the probability that the sample proportion of customers making a purchase is less than 0.15.||
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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![The All Ages Records shop finds that 80% of customers entering the store do not make a purchase. One
evening 180 people, who can be regarded as a random sample of all customers, enter the store.
a) Find the mean of the sample proportion of customers making a purchase.
b) Find the standard error of the sample proportion of customers making a purchase.]
c) Find the probability that the sample proportion of customers making a purchase is less than 0.15.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4efc5d4-6cd8-4901-ba01-f1e140289079%2F8c4ccaba-e0af-424b-a4d8-8690c23fd656%2Fk2k35qr_processed.png&w=3840&q=75)
Transcribed Image Text:The All Ages Records shop finds that 80% of customers entering the store do not make a purchase. One
evening 180 people, who can be regarded as a random sample of all customers, enter the store.
a) Find the mean of the sample proportion of customers making a purchase.
b) Find the standard error of the sample proportion of customers making a purchase.]
c) Find the probability that the sample proportion of customers making a purchase is less than 0.15.
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