(A) A major store is interested in estimating the mean amount its credit card customers spent...

(A) A major store is interested in estimating the mean amount its credit card customers spent on their first visit to the chain's new store. Fifteen credit card accounts (n=15) were randomly sampled and analyzed with the following results: and S = 20. a) Construct a 95% confidence interval for the mean amount its credit card customers spent on their first visit to the chain's new store. b) Interpret the results (the interval) you got.

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