Brand A 42 30 39 28 29 Brand B 28 36 31 32 27 Brand C 24 36 28 28 33 Test Statistic: P-V alue: 95% Confidence Interval for each brand: Brand D 20 32 38 28 25 Preliminary data analyses indicate that the independent samples come from normal populations with equal standard deviations. At the 5% significance level, does there appear to be a difference in mean lifetime among the four brands of batteries? Reject/Fail to Reject:
Brand A 42 30 39 28 29 Brand B 28 36 31 32 27 Brand C 24 36 28 28 33 Test Statistic: P-V alue: 95% Confidence Interval for each brand: Brand D 20 32 38 28 25 Preliminary data analyses indicate that the independent samples come from normal populations with equal standard deviations. At the 5% significance level, does there appear to be a difference in mean lifetime among the four brands of batteries? Reject/Fail to Reject:
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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Important, need 95% confidence interval.
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