a bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. assuming that the population standard deviation is known to be 15 minutes, obtain the 90% confidence interval estimate of the mean waiting time for all the bank customers
a bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. assuming that the population standard deviation is known to be 15 minutes, obtain the 90% confidence interval estimate of the mean waiting time for all the bank customers
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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a bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. assuming that the population standard deviation is known to be 15 minutes, obtain the 90% confidence
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