A maintenance supervisor is comparing the standard version of an instructional booklet with one that has been claimed to be superior. An experiment is conducted in which 26 technicians are divided into two groups, provided with one of the booklets, then given a test a week later. For the 13 using the standard version, the average exam score was 72.0, with a standard deviation of 9.3. For the other 13 using the new version, the average score was 80.2, with the standard deviation of 10.1. Assume normal populations with equal standard deviations, and using the 5% level of significance, does the standard version booklet appear to be better than the new version?
A maintenance supervisor is comparing the standard version of an instructional booklet with one that has been claimed to be superior. An experiment is conducted in which 26 technicians are divided into two groups, provided with one of the booklets, then given a test a week later. For the 13 using the standard version, the average exam score was 72.0, with a standard deviation of 9.3. For the other 13 using the new version, the average score was 80.2, with the standard deviation of 10.1. Assume normal populations with equal standard deviations, and using the 5% level of significance, does the standard version booklet appear to be better than the new version?
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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A maintenance supervisor is comparing the standard version of an instructional booklet with one that has been claimed to be superior. An experiment is conducted in which 26 technicians are divided into two groups, provided with one of the booklets, then given a test a week later. For the 13 using the standard version, the average exam score was 72.0, with a standard deviation of 9.3. For the other 13 using the new version, the average score was 80.2, with the standard deviation of 10.1. Assume normal populations with equal standard deviations, and using the 5% level of significance, does the standard version booklet appear to be better than the new version?
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