Mathematics, 25.11.2021 05:40 keeks11
In a study of the lifetimes of electronic components, a random sample of 400 components were tested until they failed to function. The sample mean lifetime was 370 hours and the standard deviation was 650 hours. An approximate 95% confidence interval for the mean lifetime of this type of component is from 306.3 to 433.7 hours. Group startsTrue or False
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In a study of the lifetimes of electronic components, a random sample of 400 components were tested...
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