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 teler 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 64 6.6 6.7 58 78 7.8 100 68 71 72 75 78 86 Bank B 43 54 6.1 6.8 78 78 93 olen

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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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 feods 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
6.4
4.3
6.6
6.7
68
6.1
71
72
75
78
78
7.8
Bank B
5.4
58
6.8
78
78
93
100
Click the icon to view the table of Chi-Square critical values
Construct a 90% confidonce interval for the population standard deviation a at Bank A
39 min <ogank A 88 min
(Round to two decimal places as needed)
Construct a 90% confidence interval for the population standard deviation a at Bank B
Omin < opank min
(Round to two decimal places as needed)
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 feods 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 6.4 4.3 6.6 6.7 68 6.1 71 72 75 78 78 7.8 Bank B 5.4 58 6.8 78 78 93 100 Click the icon to view the table of Chi-Square critical values Construct a 90% confidonce interval for the population standard deviation a at Bank A 39 min <ogank A 88 min (Round to two decimal places as needed) Construct a 90% confidence interval for the population standard deviation a at Bank B Omin < opank min (Round to two decimal places as needed)
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