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According to a survey conducted by the American Automobile Association, a family of four spends an...

According to a survey conducted by the American Automobile Association, a family of four spends an average of $255.60 per day while on vacation in the US. Suppose a sample of 36 families of four vacationing at Mount Rushmore resulted in a sample mean of $235.31 per day and a sample standard deviation of $53.50.

a) Develop a 95% confidence interval estimate of the mean amount spent per day by a family of four visiting Mount Rushmore (round to two decimal places)

b) Give a short discussion of what this result may imply.

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