A survey conducted by the American Automobile Association showed that a family of fourspends an average of $215.60 per day while on vacation. Suppose a sample of 64 familiesof four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and asample standard deviation of $74.50.a. Develop a 95% confidence interval estimate of the mean amount spent per day by afamily of four visiting Niagara Falls.b. based on the confidence interval from part (a), does it appear that the population meanamount spent per day by families visiting Niagara Falls differs from the mean reportedby the American Automobile Association? Explain.

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A survey conducted by the American Automobile Association showed that a family of four
spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families
of four vacationing at Niagara Falls resulted in a sample mean of $252.45 per day and a
sample standard deviation of $74.50.
a. Develop a 95% confidence interval estimate of the mean amount spent per day by a
family of four visiting Niagara Falls.
b. based on the confidence interval from part (a), does it appear that the population mean
amount spent per day by families visiting Niagara Falls differs from the mean reported
by the American Automobile Association? Explain.

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