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A company claims that the hold times for customer service averages at most 10 minutes. A random sample of 24 hold times has a mean

A company claims that the hold times for customer service averages at most 10 minutes. A random sample of 24 hold times has a mean of 11.2 minutes with a standard deviation of 3.4 minutes. Is there enough evidence to support the claim at = 0.05? Assume the population is normally distributed.

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