A teacher wants to find out if there is a significant difference in the academic performance of two gre students. One group meets thrice a week while the other meets twice a week. Below are the final exam of the two groups. Use a = 0.01. 3x/wk 80 2x/wk 66 85 74 75 65 66 80 77 75 95 66 55 79 85 98 87 84 85 56 59 25 53 45 66 52 Ho:
A teacher wants to find out if there is a significant difference in the academic performance of two gre students. One group meets thrice a week while the other meets twice a week. Below are the final exam of the two groups. Use a = 0.01. 3x/wk 80 2x/wk 66 85 74 75 65 66 80 77 75 95 66 55 79 85 98 87 84 85 56 59 25 53 45 66 52 Ho:
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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Question
Transcribed Image Text:Activity 4. Apply the steps in hypothesis testing for each problem.
1. Two rival manufacturers of penlight batteries claimed that their product lasts longer than the other. Thirty
samples of Brand A and thirty-four of Brand B were tested. The following are the lengths of lives of such
batteries recorded in hours. Use a = 0.05.
Brand A
38 41
35 40 39 37 40 42 44 38 37 41 40
42 36 39 41 43 35 36 38 42
39 40 43 44
38 42 45 41
Brand B
43 39 38 40 43 44 39 40 41 42
38 40 41 43 39 41 40
39 40 45 40 38 42 41
40 36 37 41 42 40 36 38 41
40
Ho:
Ha:
Hypothesis Test:
Decision (include the Microsoft Excel output):
Conclusion
Transcribed Image Text:2. A teacher wants to find out if there is a significant difference in the academic performance of two groups of
students. One group meets thrice a week while the other meets twice a week. Below are the final exam scores
of the two groups. Use a = 0.01.
3x/wk 80
2x/wk 66 98
80
25
85
74 75
65
66
77
75
79 85
95
55
66
66
87
84
85
56
59
53
45
52
Ho:
Ha:
Hypothesis Test:
Decision (include the Microsoft Excel output):
Conclusion:
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