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The mean output of a certain type of amplifier is496 496watts with a variance of144 144. If40 40amplifiers are sampled, what is the probability that

The mean output of a certain type of amplifier is496

496watts with a variance of144

144.

If40

40amplifiers are sampled, what is the probability that the mean of the sample would differ from the population mean by less than1.2

1.2watts? Round your answer to four decimal places.

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