Author Question: Each customer entering a department store will either buy or not buy some merchandise. An experiment ... (Read 157 times)

kamilo84 · **on:** Jun 24, 2018

Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following three customers and determining whether or not they purchase any merchandise. The number of sample points in this experiment is _____.
a. 2
b. 4
c. 6
d. 8

Question 2

The manager of a department store wants to determine the proportion of people who use the store's credit cards for their purchases. What sample size should he take so that, at 95 confidence, the error will not be more than 6?