The average lifetime of smoke detectors that a company manufactures is 60 months, and the standard deviation is 8 months
Posted: Mon Nov 15, 2021 10:58 am
company manufactures is 60 months, and the standard deviation is 8 months. Find the probability that a random sample of 34 smoke detectors will have a mean lifetime between 58 and 63 months. Round the final answer to at least four decimal places and intermediate z-value calculations to 2 decimal places.
The average lifetime of smoke detectors that a