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2. Three brands of batteries are under study. It is suspected that the lives (in weeks) of the three brands are different. Five randomly selected batteries of each brand are tested with the following results: Weeks of Life Brand 1 Brand 2 Brand 3 97 76 105 96 71 102 98 75 106 96 74 99 93 76 102 a. Are the average lives of these brands of batteries different? i. State the hypotheses, ii. What is the value of the test statistic? iii. What is the p-value? iv. What is the decision? v. Make conclusions. b. Write down the appropriate statistical model and its assumption to be valid.

2. Three brands of batteries are under study. It is suspected that the lives (in weeks) of the three brands are different. Five randomly selected batteries of each brand are tested with the following results: Weeks of Life Brand 1 Brand 2 Brand 3 97 76 105 96 71 102 98 75 106 96 74 99 93 76 102 a. Are the average lives of these brands of batteries different? i. State the hypotheses, ii. What is the value of the test statistic? iii. What is the p-value? iv. What is the decision? v. Make conclusions. b. Write down the appropriate statistical model and its assumption to be valid.

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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2. Three brands of batteries are under study. It is suspected that the lives (in weeks) of the three brands are different. Five randomly selected batteries of each brand are tested with the following results: Brand 1 97 96 98 96 93 Weeks of Life Brand 2 76 71 75 74 Brand 3 105 102 106 99 76 102 a. Are the average lives of these brands of batteries different? i. State the hypotheses, ii. What is the value of the test statistic? iii. What is thep value? iv. What is the decision? v. Make conclusions. b. Write down the appropriate statistical model and its assumption to be valid.
Transcribed Image Text:2. Three brands of batteries are under study. It is suspected that the lives (in weeks) of the three brands are different. Five randomly selected batteries of each brand are tested with the following results: Brand 1 97 96 98 96 93 Weeks of Life Brand 2 76 71 75 74 Brand 3 105 102 106 99 76 102 a. Are the average lives of these brands of batteries different? i. State the hypotheses, ii. What is the value of the test statistic? iii. What is thep value? iv. What is the decision? v. Make conclusions. b. Write down the appropriate statistical model and its assumption to be valid.
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