Perform the test of hypothesis

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The lifetime for a certain brand of incandescent light bulbs is normally distributed. A consumer group complains that the mean lifetime of this brand of incandescent light bulbs is no more than 500 hours. A random sample of five of these light bulbs had a mean lifetime of 520 hours and standard deviation of 50 hours. Perform the test of hypothesis at the α = .10 level of significance.

Reference no: EM131870298

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