Mathematics, 15.07.2020 01:01, paulusl19

In a random sample of 60 computers, the mean repair cost was $150 with a population standard deviation of $36. Use this sample data to construct a 90% confidence interval for the mean repair cost, μ, of all such computers.

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In a random sample of 60 computers, the mean repair cost was $150 with a population standard deviati...