Question: Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. These data are contained in the file named

Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. These data are contained in the file named Houston. Based on past studies the population standard deviation is known with σ = $6.
a. At 99% confidence, what is the margin of error?
b. Develop a 99% confidence interval estimate of the mean amount spent for lunch.

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