Find probability that bulbs have average life expectancy, Basic Statistics

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Find probability that bulbs have average life expectancy

Suppose a certain brand of Westinghouse light bulbs has a population life expectancy of 3000 and a population standard deviation equal to 100. (Assume the distribution of the population is normal).

a) What is the probability that a sample of 30 light bulbs will have an average life expectancy of fewer than 2950 hours?

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Basic Statistics: Find probability that bulbs have average life expectancy

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Basic Statistics: Find probability that bulbs have average life expectancy

Reference No:- TGS097419

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Basic Statistics: Find probability that bulbs have average life expectancy

Reference No:- TGS097419

Recent Questions Asked Basic Statistics

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