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A bank manager would like to waiting time needed by those customers who have visited to his branch. The sample data that he has collected from 25 customers revealed that the average waiting time of 8.43 minutes and standard deviation of 0.5473 minutes. Construct a 99% confidence interval to estimate the population mean scores for customer satisfaction index of this bank branch.

A bank manager would like to waiting time needed by those customers who have visited to his branch. The sample data that he has collected from 25 customers revealed that the average waiting time of 8.43 minutes and standard deviation of 0.5473 minutes. Construct a 99% confidence interval to estimate the population mean scores for customer satisfaction index of this bank branch.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A bank manager would like to waiting time needed by those customers who have visited to his branch. The sample data that he has collected from 25 customers revealed that the average waiting time of 8.43 minutes and standard deviation of 0.5473 minutes. Construct a 99% confidence interval to estimate the population mean scores for customer satisfaction index of this bank branch.
Transcribed Image Text:A bank manager would like to waiting time needed by those customers who have visited to his branch. The sample data that he has collected from 25 customers revealed that the average waiting time of 8.43 minutes and standard deviation of 0.5473 minutes. Construct a 99% confidence interval to estimate the population mean scores for customer satisfaction index of this bank branch.
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