Find probability that a random sample of 15 bulbs will have


An electrical firm manufactures electric light bulbs that have a length of life which is normally distributed with mean and standard deviation equal to 500 and 50 hours, respectively. Find the probability that a random sample of 15 bulbs will have an average life of less than 475 hours.

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Basic Statistics: Find probability that a random sample of 15 bulbs will have
Reference No:- TGS0117621

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