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 6.6 6.7 6.8 7.1 7.3 7.5 7.8 7.8 7.8 Bank B 4.2 5.5 5.9 6.3 6.7 7.7 7.7 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 90% confidence interval for the population standard deviation o at Bank A. min < OBank A (Round to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 26PPS
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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 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
6.6
6.7
6.8
7.1
7.3
7.5
7.8
7.8
7.8
Bank B
4.2
5.5
5.9
6.3
6.7
7.7
7.7
8.5
9.3
10.0
Click the icon to view the table of Chi-Square critical values.
Construct a 90% confidence interval for the population standard deviation o at Bank A.
min < OBank A
(Round to two decimal places as needed.)
<min
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 6.6 6.7 6.8 7.1 7.3 7.5 7.8 7.8 7.8 Bank B 4.2 5.5 5.9 6.3 6.7 7.7 7.7 8.5 9.3 10.0 Click the icon to view the table of Chi-Square critical values. Construct a 90% confidence interval for the population standard deviation o at Bank A. min < OBank A (Round to two decimal places as needed.) <min
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