Population standard deviation of amounts spent per day

Reference no: EM13100133

A survey conducted by the American Automobile Association of 64 families of size four vacationing in Niagra Falls resulted in an average amount spent per day of $252.45. Assume the population standard deviation of amounts spent per day is estimated from a previous study to be $74.50.

a) Estimate the average amount spent per day by families of size four while vacationing in Niagra Falls with 95% confidence.

Reference no: EM13100133

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