he 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 tha tandard deviation of waiting times is less than 1.8 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines ach teller window. Use a significance level of 0.01. Complete parts (a) through (d) below. E Click on the icon to view the data, . Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: o=1.8 minutes O A. Ho: o< 1.8 minutes HA 0=1.8 minutes HA: o+1.8 minutes O D. Ho: 0= 1.8 minutes H o<1.8 minutes O C. Ho: o2 1.8 minutes HA o<1.8 minutes

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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The image presents a scenario involving waiting times at a bank. Customers enter a single line that leads to three teller windows. A claim is being tested that the standard deviation of waiting times is less than 1.8 minutes. The standard deviation of waiting times at the same bank when separate lines are used is 1.8 minutes. The significance level for the test is set at 0.01.

A section is provided where users must identify the null and alternative hypotheses. Four options are listed:

A.  
- \( H_0: \sigma < 1.8 \, \text{minutes} \)  
- \( H_A: \sigma = 1.8 \, \text{minutes} \)

B.  
- \( H_0: \sigma = 1.8 \, \text{minutes} \)  
- \( H_A: \sigma \neq 1.8 \, \text{minutes} \)

C.  
- \( H_0: \sigma \geq 1.8 \, \text{minutes} \)  
- \( H_A: \sigma < 1.8 \, \text{minutes} \)

D.  
- \( H_0: \sigma = 1.8 \, \text{minutes} \)  
- \( H_A: \sigma < 1.8 \, \text{minutes} \)

The task is to choose the correct hypothesis setup based on the scenario described.
Transcribed Image Text:The image presents a scenario involving waiting times at a bank. Customers enter a single line that leads to three teller windows. A claim is being tested that the standard deviation of waiting times is less than 1.8 minutes. The standard deviation of waiting times at the same bank when separate lines are used is 1.8 minutes. The significance level for the test is set at 0.01. A section is provided where users must identify the null and alternative hypotheses. Four options are listed: A. - \( H_0: \sigma < 1.8 \, \text{minutes} \) - \( H_A: \sigma = 1.8 \, \text{minutes} \) B. - \( H_0: \sigma = 1.8 \, \text{minutes} \) - \( H_A: \sigma \neq 1.8 \, \text{minutes} \) C. - \( H_0: \sigma \geq 1.8 \, \text{minutes} \) - \( H_A: \sigma < 1.8 \, \text{minutes} \) D. - \( H_0: \sigma = 1.8 \, \text{minutes} \) - \( H_A: \sigma < 1.8 \, \text{minutes} \) The task is to choose the correct hypothesis setup based on the scenario described.
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