A random sample of 61 lunch customers was selected at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 35 minutes and the sample standard deviation equals 7.7 minutes. At a 90% level of confidence, what is the margin of error for the confidence interval? a. 1.836 b. 1.647 C. 1.563 d. 1.824 e. 1.833

A random sample of 61 lunch customers was selected at a restaurant. The average amount of time the customers in the sample stayed in the restaurant was 35 minutes and the sample standard deviation equals 7.7 minutes. At a 90% level of confidence, what is the margin of error for the confidence interval? a. 1.836 b. 1.647 C. 1.563 d. 1.824 e. 1.833

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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