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
icon
Related questions
Question
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: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
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:
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:
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar 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