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 to listen to music at work. A random sample of 8 workers' times were collected before and after wearing ear buds. Assume the data is normally distributed. Perform a Matched-Pairs hypotheis T-test for the claim that the time to complete the task has changed at a significance level of a = 0.10. (If you wish to copy this data to a spreadsheet or StatCrunch, you may find it useful to first copy it to Notepad, in order to remove any formatting.) Round answers to 3 decimal places. For this problem, d= After H_Before, where the first data set represents "after" and the second data set represents "before". Ho: Hd=0 Ha: Hd #0 This is the sample data: Before After 56.5 32.9 61 50.8 64.1 38.1 46.2 45.3 31.9 24.3 37 29.2 63.4 55.8 32.6 29.6 What is the mean difference for this sample? Mean difference = What is the test statistic for this sample? Test statistic = What is the P-value for this test? P-value =

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 to listen to music at work. A random sample of 8 workers' times were collected before and after wearing ear buds. Assume the data is normally distributed. Perform a Matched-Pairs hypotheis T-test for the claim that the time to complete the task has changed at a significance level of a = 0.10. (If you wish to copy this data to a spreadsheet or StatCrunch, you may find it useful to first copy it to Notepad, in order to remove any formatting.) Round answers to 3 decimal places. For this problem, d= After H_Before, where the first data set represents "after" and the second data set represents "before". Ho: Hd=0 Ha: Hd #0 This is the sample data: Before After 56.5 32.9 61 50.8 64.1 38.1 46.2 45.3 31.9 24.3 37 29.2 63.4 55.8 32.6 29.6 What is the mean difference for this sample? Mean difference = What is the test statistic for this sample? Test statistic = What is the P-value for this test? P-value =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

See similar textbooks