Mathematics, 29.04.2021 02:00 peytenyoung

A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 754 hours. A random sample of 29 light bulbs has a mean life of 737 hours. Assume the population is normally distributed and the population standard deviation is 59 hours. At α=0.08, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e)

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A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least...

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