MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at
three teller windows. Answer the following questions.
Bank A
6.3
4.3
6.6
7.0
7.0
Bank B
5.4
5.8
6.1
6.8
78
8.5
10.0
A Click the icon to view the table of Chi-Square critical values.
Construct a 95% confidence interval for the population standard deviation a at Bank A
O min <ogank A min
(Round to two decimal places as needed.)
Construct a 95% confidence interval for the population standard deviation a at Bank B.
O min <gank B min
(Round to two decimal places as needed.)
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