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Mathematics, 19.04.2021 03:00 monsurviky
Sponse.
A battery manufacturer advertises that the mean reserve capacity of a certain battery is 1500 hours. You susp
capacity to be 1320 hours. Assume that the population standard deviation is 320 hours. Do you
 have enough evidence to support the manufactures claim? What assumption is necessary for this test to be valid?
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