Mathematics, 29.03.2021 19:20 kcnawlay170
Researchers for a company that manufactures batteries want to test the hypothesis that the mean battery life of their new battery is greater than the known mean battery life of their older version. The researchers selected random samples of 32 of the new batteries, subjected the batteries to continuous use, and determined the mean and standard deviation of the battery lives in the sample.
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Researchers for a company that manufactures batteries want to test the hypothesis that the mean batt...
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