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Determining the Shape of the Sampling Distribution

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A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sample and analyzed with the following results: X = $50.50 S2 and 400. Assuming the distribution of the amount spent on their first visits is approximately normal, what is the shape of the sampling distribution of the sample mean that will be used to create the desired confidence interval for you?

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Solution Summary

This solution provides calculations for determining the shape of the sampling distribution.

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