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W answer the questions. 1. Three brands of batteries are under study. It is suspected that the lives (in weeks) of the t
Posted: Sat Feb 19, 2022 3:30 pm
by answerhappygod
- W Answer The Questions 1 Three Brands Of Batteries Are Under Study It Is Suspected That The Lives In Weeks Of The T 1 (297.13 KiB) Viewed 77 times
- W Answer The Questions 1 Three Brands Of Batteries Are Under Study It Is Suspected That The Lives In Weeks Of The T 2 (67.3 KiB) Viewed 77 times
W answer the
questions. 1. 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 96 98 96 93 76 71 75 74 76 105 102 106 99 102 a. Are the average lives of these brands of batteries different? i. State the hypotheses, ii. Make conclusions. b. Analyze the residuals from this experiment. Are the basic analysis of variance assumptions satisfied? 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. C. Calculate and use the LSD to compare all pair of means. What conclusions can you draw? d. Calculate and use Tukey's significance difference to compare all pair of means. What conclusions can you draw? e. Which brand would you select for use? Calculate and use Dunnett's significance difference. Assume that brand 1 is currently used.
t. It you are maximizing the battery life, compare the results from parts c, d, and e.