What is the margin of error

Reference no: EM13182680

In an effort to estimate the mean amount spent per customer for dinner at an Atlanta restaurant, data were collected for a sample of 42 customers. The data collected resulted in a sample mean of $29. Based upon past studies the population standard deviation is assumed known with ? = $5.

Round your answers to two decimal places.

a. At 95% confidence, what is the margin of error?
b. Develop a 95% confidence interval estimate of the mean amount spent for dinner.($( )to$( ))

Reference no: EM13182680

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