Homework Help is Here – Start Your Trial Now!
Math
Statistics
A manager wishes to see if the time (in minutes) it takes for their workers to complete a certain task will change when they are allowed to wear ear buds at work. A random sample of 21 workers' times were collected before and after. Test the claim that the time to complete the task has changed at a significance level of a = 0.05. For the context of this problem, Ha = Hafter - Hbef or e where the first data set represents after and the second data set represents before. Assume the population is normally distributed. Round answers to 4 decimal places. H.: Ha = 0 Ha: Hd + 0 You obtain the following sample of data: Before 53.5 52.9 After 64.4 45.4 51.7 58.4 52.4 55.5 58.2 35.9 75.5 21.4 40.7 48.6 60.5 52.4 26.8 51.5 38.2 44.2 53.3 55.7 38.7 53.5 25.5 52.8 49.4 50.5 19,9 48.8 41.3 50.3 38.8 47 62 53.1 51.7 52.6 23.1 49.5 49.8 49.7 What is the critical value for this test? critical value = +| What is the test statistic for this sample? test statistic - The test statistic is... Select an answer This test statistic leads to a decision to... Select an answer As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O There is not sufficient sample evidence to support the claim that the time to complete the task has changed. O There is not sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O The sample data support the claim that the time to complete the task has changed.

A manager wishes to see if the time (in minutes) it takes for their workers to complete a certain task will change when they are allowed to wear ear buds at work. A random sample of 21 workers' times were collected before and after. Test the claim that the time to complete the task has changed at a significance level of a = 0.05. For the context of this problem, Ha = Hafter - Hbef or e where the first data set represents after and the second data set represents before. Assume the population is normally distributed. Round answers to 4 decimal places. H.: Ha = 0 Ha: Hd + 0 You obtain the following sample of data: Before 53.5 52.9 After 64.4 45.4 51.7 58.4 52.4 55.5 58.2 35.9 75.5 21.4 40.7 48.6 60.5 52.4 26.8 51.5 38.2 44.2 53.3 55.7 38.7 53.5 25.5 52.8 49.4 50.5 19,9 48.8 41.3 50.3 38.8 47 62 53.1 51.7 52.6 23.1 49.5 49.8 49.7 What is the critical value for this test? critical value = +| What is the test statistic for this sample? test statistic - The test statistic is... Select an answer This test statistic leads to a decision to... Select an answer As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O There is not sufficient sample evidence to support the claim that the time to complete the task has changed. O There is not sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O The sample data support the claim that the time to complete the task has changed.

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
Topic Video
Question
100%
A manager wishes to see if the time (in minutes) it takes for their workers to complete a certain task will change when they are allowed to wear ear buds at work. A random sample of 21 workers' times were collected before and after. Test the claim that the time to complete the task has changed at a significance level of a = 0.05. For the context of this problem, Ha = Hafter - Hbef or e Wwhere the first data set represents after and the second data set represents before. Assume the population is normally distributed. Round answers to 4 decimal places. H.: Hd = 0 Ha: Hd + 0 You obtain the following sample of data: After Before 64.4 53.5 45.4 52.9 58.2 51.7 35.9 58.4 75.5 52.4 21.4 55.5 40.7 48.6 60.5 52.4 26.8 51.5 38.2 44.2 53.3 55.7 38.7 53.5 25.5 52.8 49.4 50.5 19.9 48.8 41.3 50.3 38.8 47 62 53.1 51.7 49.5 52.6 49.8 23.1 49.7 What is the critical value for this test? critical value = + What is the test statistic for this sample? test statistic = The test statistic is... Select an answer This test statistic leads to a decision to... Select an answer As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O There is not sufficient sample evidence to support the claim that the time to complete the task has changed. O There is not sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O The sample data support the claim that the time to complete the task has changed.
Transcribed Image Text:A manager wishes to see if the time (in minutes) it takes for their workers to complete a certain task will change when they are allowed to wear ear buds at work. A random sample of 21 workers' times were collected before and after. Test the claim that the time to complete the task has changed at a significance level of a = 0.05. For the context of this problem, Ha = Hafter - Hbef or e Wwhere the first data set represents after and the second data set represents before. Assume the population is normally distributed. Round answers to 4 decimal places. H.: Hd = 0 Ha: Hd + 0 You obtain the following sample of data: After Before 64.4 53.5 45.4 52.9 58.2 51.7 35.9 58.4 75.5 52.4 21.4 55.5 40.7 48.6 60.5 52.4 26.8 51.5 38.2 44.2 53.3 55.7 38.7 53.5 25.5 52.8 49.4 50.5 19.9 48.8 41.3 50.3 38.8 47 62 53.1 51.7 49.5 52.6 49.8 23.1 49.7 What is the critical value for this test? critical value = + What is the test statistic for this sample? test statistic = The test statistic is... Select an answer This test statistic leads to a decision to... Select an answer As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O There is not sufficient sample evidence to support the claim that the time to complete the task has changed. O There is not sufficient evidence to warrant rejection of the claim that the time to complete the task has changed. O The sample data support the claim that the time to complete the task has changed.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE 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