Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. Based upon 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.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Data were collected on the amount spent by 64 customers for lunch at a major Houston restaurant. Based upon 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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