The Central Limit Theorem for Proportions · Exercise 10
A store surveys customers to see if they are satisfied with the service they received. Samples of 25 surveys are taken. One in five people are unsatisfied. What is the variance of the mean of the sampling distribution of sample proportions for the number of unsatisfied customers? What is the variance for satisfied customers?
OpenStax, Introductory Business Statistics 2e · §7.3 The Central Limit Theorem for Proportions · Exercise 10
No hints for this one.
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