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A major department store chain is interested in estimating the averageamount its credit card customers spent on their first visit to the chain'snew store in
A major department store chain is interested in estimating the averageamount its credit card customers spent on their first visit to the chain'snew store in the mall.Fifteencredit card accounts were randomlysampled and analyzed with the following results:X=$50.50 and2S== 400 . Construct a 95% confidence interval for the average amountitscredit card customers spent on their first visit to the chain's new store inthe mall assuming that the amount spent follows a normal distribution
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