Question

As part of a marketing study, Sleep ’n’ Dream wants to estimate, for customers who have recently purchased a mattress and box spring, the average number of stores that customers visited before making their purchase. A sample of six customers is randomly selected, with the following results:
Use this sample data to construct a 90% confidence interval estimate of the average number of store visits for the population represented here. Assume that the population of values is approximately normal.


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  • CreatedJuly 16, 2015
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