Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question
Goofy Marketing Solutions conducted a survey among 16 randomly selected visitors to the newly opened Outlet Shoppes at Atlanta to measure their satisfaction with the shopping experience. The sample satisfaction score is
The upper limit of the 95% confidence interval is (rounded)....
Expert Solution
Step 1
Sample mean = 67
sample standard deviation(sd.) = 7.509
The normal distribution value for 95% confidence level (za/2) = 1.96
The formula for confidence interval is :-
sample mean -+ (za/2) ( sd. / n1/2)
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