Determine the probability the mean life time, Basic Statistics

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Determine the probability the mean life time

A manufacturer claims that the average life of its light bulb is 1,200 hours. Assume that the life of all such bulbs has a normal distribution with mean 1,200 hours, and standard deviation 70 hours. Determine the probability the mean life time of a random sample of 9 bulbs will be:
a) At least 1,180 hours.
b) Between 1,185 and 1,190 hours

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Basic Statistics: Determine the probability the mean life time

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Basic Statistics: Determine the probability the mean life time

Reference No:- TGS0116555

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Recent Questions Asked Basic Statistics

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Ask an Expert for Answer!!

Basic Statistics: Determine the probability the mean life time

Reference No:- TGS0116555

Recent Questions Asked Basic Statistics

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