Mathematics, 20.11.2019 01:31 nisha87
The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is 8 months. find the probability that a random sample of 30 smoke detectors will have a mean lifetime between 58 and 63 months
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The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and th...
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