Homework Help is Here – Start Your Trial Now!
Math
Statistics
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 1.9 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 0.025. 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 A. Ho: 021.9 minutes O B. Ho: =1.9 minutes HA: G=1.9 minutes HA:G<1.9 minutes OC. Ho: G=1.9 minutes O D. Ho: 6<1.9 minutes HA:G<19 minutes H:0=1.9 minutes b. Compute the test statistic. (Round to two decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic is (Round to three decimal places as needed.) d. Does the use of the single line appear to reduce the variation among waiting times? There v sufficient evidence to conclude that the single line reduced the variation among waiting times because H, is v by the hypothesis test.

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 1.9 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 0.025. 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 A. Ho: 021.9 minutes O B. Ho: =1.9 minutes HA: G=1.9 minutes HA:G<1.9 minutes OC. Ho: G=1.9 minutes O D. Ho: 6<1.9 minutes HA:G<19 minutes H:0=1.9 minutes b. Compute the test statistic. (Round to two decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic is (Round to three decimal places as needed.) d. Does the use of the single line appear to reduce the variation among waiting times? There v sufficient evidence to conclude that the single line reduced the variation among waiting times because H, is v by the hypothesis test.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
The image displays a table titled "Customer Waiting Times (in minutes)," which contains several rows and columns of numerical data: ``` 8.2 | 7.6 | 6.7 | 6.8 7.3 | 6.6 | 6.1 | 6.4 7.1 | 6.4 | 7.5 | 7.5 6.2 | 7.9 | 8.3 | 7.3 7.3 | 8.9 | 5.4 | 9.4 7.2 | 7.6 | 6.2 | 7.2 7.6 | 6.5 | 7.4 | 7.5 6.4 | 7.2 | 7.8 | 7.0 8.2 | 8.9 | 6.8 | 8.8 6.4 | 7.9 | 7.8 | 7.9 6.5 | 7.4 | 7.4 | 6.4 8.5 | 6.4 | 8.8 | 7.3 11.7 | 6.6 | 7.8 | 6.1 7.6 | 7.2 | 7.5 | 7.8 6.4 | 7.5 | 6.7 | 6.8 ``` This table organizes waiting times for customers measured in minutes across different scenarios or instances. Each row represents a set of waiting times under specific circumstances. Analyzing this data can reveal patterns or insights into customer service efficiency.
Transcribed Image Text:The image displays a table titled "Customer Waiting Times (in minutes)," which contains several rows and columns of numerical data: ``` 8.2 | 7.6 | 6.7 | 6.8 7.3 | 6.6 | 6.1 | 6.4 7.1 | 6.4 | 7.5 | 7.5 6.2 | 7.9 | 8.3 | 7.3 7.3 | 8.9 | 5.4 | 9.4 7.2 | 7.6 | 6.2 | 7.2 7.6 | 6.5 | 7.4 | 7.5 6.4 | 7.2 | 7.8 | 7.0 8.2 | 8.9 | 6.8 | 8.8 6.4 | 7.9 | 7.8 | 7.9 6.5 | 7.4 | 7.4 | 6.4 8.5 | 6.4 | 8.8 | 7.3 11.7 | 6.6 | 7.8 | 6.1 7.6 | 7.2 | 7.5 | 7.8 6.4 | 7.5 | 6.7 | 6.8 ``` This table organizes waiting times for customers measured in minutes across different scenarios or instances. Each row represents a set of waiting times under specific circumstances. Analyzing this data can reveal patterns or insights into customer service efficiency.
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 1.9 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 0.025. Complete parts (a) through (d) below. ### a. Identify the null and alternative hypotheses. Choose the correct answer below. - ○ A. \( H_0: \sigma = 1.9 \) minutes \( H_a: \sigma < 1.9 \) minutes - ○ B. \( H_0: \sigma = 1.9 \) minutes \( H_a: \sigma > 1.9 \) minutes - ○ C. \( H_0: \sigma \neq 1.9 \) minutes \( H_a: \sigma = 1.9 \) minutes - ○ D. \( H_0: \sigma < 1.9 \) minutes \( H_a: \sigma = 1.9 \) minutes ### b. Compute the test statistic. \( \chi^2 = \) \_\_\_\_\_ (Round to two decimal places as needed.) ### c. Find the P-value of the test statistic. The P-value of the test statistic is \_\_\_\_\_ . (Round to three decimal places as needed.) ### d. Does the use of the single line appear to reduce the variation among waiting times? There \_\_\_\_ sufficient evidence to conclude that the single line reduced the variation among waiting times because \( H_0 \) is \_\_\_\_ by the hypothesis test. Note: The text describes a hypothesis testing scenario involving the standard deviation of waiting times at a bank. The goal is to determine if a single line reduces variation compared to multiple lines.
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 1.9 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 0.025. Complete parts (a) through (d) below. ### a. Identify the null and alternative hypotheses. Choose the correct answer below. - ○ A. \( H_0: \sigma = 1.9 \) minutes \( H_a: \sigma < 1.9 \) minutes - ○ B. \( H_0: \sigma = 1.9 \) minutes \( H_a: \sigma > 1.9 \) minutes - ○ C. \( H_0: \sigma \neq 1.9 \) minutes \( H_a: \sigma = 1.9 \) minutes - ○ D. \( H_0: \sigma < 1.9 \) minutes \( H_a: \sigma = 1.9 \) minutes ### b. Compute the test statistic. \( \chi^2 = \) \_\_\_\_\_ (Round to two decimal places as needed.) ### c. Find the P-value of the test statistic. The P-value of the test statistic is \_\_\_\_\_ . (Round to three decimal places as needed.) ### d. Does the use of the single line appear to reduce the variation among waiting times? There \_\_\_\_ sufficient evidence to conclude that the single line reduced the variation among waiting times because \( H_0 \) is \_\_\_\_ by the hypothesis test. Note: The text describes a hypothesis testing scenario involving the standard deviation of waiting times at a bank. The goal is to determine if a single line reduces variation compared to multiple lines.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS