The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.5 minutes, Wl deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below. Click on the icon to view the data. a. Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: o< 1.5 minutes HA: G= 1.5 minutes A. Ho: o21.5 minutes HA: o<1.5 minutes OC. Ho: 0= 1.5 minutes D. Ho: a= 1.5 minutes HA: o1.5 minutes HA:o<1.5 minutes b. Compute the test statistic. (Round to two decimal places as needed.)

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Chapter1: Starting With Matlab
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Calculate the p value State the conclusion
Customer Waiting Times
(in minutes)
6.5
8.5
7.7
6.6
7.8
6.2
6.8
6.3
7.5
7.1
6.7
6.8
7.3
7.5
12.3
7.8
6.8
8.5
14.4
6.8
6.7
8.6
7.9
4.7
7.3
7.9
6.8
6.9
7.9
7.5
6.5
7.9
7.4
7.4
7.3
6.8
7.3
7.8
6.6
6.1
6.8
7.4
8.7
7.2
7.5
7.3
8.7
7.3
11.4
7.9
8.3
7.9
6.2
6.3
7.8
8.7
6.2
8.3
7.3
6.1
Transcribed Image Text:Customer Waiting Times (in minutes) 6.5 8.5 7.7 6.6 7.8 6.2 6.8 6.3 7.5 7.1 6.7 6.8 7.3 7.5 12.3 7.8 6.8 8.5 14.4 6.8 6.7 8.6 7.9 4.7 7.3 7.9 6.8 6.9 7.9 7.5 6.5 7.9 7.4 7.4 7.3 6.8 7.3 7.8 6.6 6.1 6.8 7.4 8.7 7.2 7.5 7.3 8.7 7.3 11.4 7.9 8.3 7.9 6.2 6.3 7.8 8.7 6.2 8.3 7.3 6.1
The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.5 minutes, which is the standard
deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below.
E Click on the icon to view the data.
a. Identify the null and alternative hypotheses. Choose the correct answer below.
O B. Ho: a< 1.5 minutes
O A. Ho: o21.5 minutes
HA: o<1.5 minutes
HA: G= 1.5 minutes
D. Ho: = 1,5 minutes
O C. Ho: o = 1.5 minutes
HA: o+1.5 minutes
HA: o<1.5 minutes
b. Compute the test statistic.
(Round to two decimal places as needed.)
Transcribed Image Text:The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 1.5 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.05. Complete parts (a) through (d) below. E Click on the icon to view the data. a. Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: a< 1.5 minutes O A. Ho: o21.5 minutes HA: o<1.5 minutes HA: G= 1.5 minutes D. Ho: = 1,5 minutes O C. Ho: o = 1.5 minutes HA: o+1.5 minutes HA: o<1.5 minutes b. Compute the test statistic. (Round to two decimal places as needed.)
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