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What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 1.761 O-1.761 1.833 -1.345 1.345

What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 1.761 O-1.761 1.833 -1.345 1.345

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
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For Questions 1-4, consider the following: A study is designed to determine the effect of an office-training course on typing productivity. Fifteen typists who have not taken the course are randomly selected. The investigator assigns 20 pages of equally difficult text to be typed by each typist both before and after completing the training course. The investigator wants to find out whether the training course has reduced the number of errors by more than 10. Define d= Before - After. What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 3 O 1.761 O-1.761 1.833 O-1.345 O 1.345 < Previous E 4 5 MacBook Pro 7 8 Next >
Transcribed Image Text:For Questions 1-4, consider the following: A study is designed to determine the effect of an office-training course on typing productivity. Fifteen typists who have not taken the course are randomly selected. The investigator assigns 20 pages of equally difficult text to be typed by each typist both before and after completing the training course. The investigator wants to find out whether the training course has reduced the number of errors by more than 10. Define d= Before - After. What is the critical value to test the hypothesis at the 5% level of significance that the training course has proven to be useful in reducing the number of typing errors by more than 10? 3 O 1.761 O-1.761 1.833 O-1.345 O 1.345 < Previous E 4 5 MacBook Pro 7 8 Next >
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