1. A random sample of 49 observations from a normal population yields a sample mean of 85...

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1. A random sample of 49 observations from a normal population yields a sample mean of 85 with a standard deviation of 14.

(a) Test the claim that the population mean differs from 85. Use a 0.05 significance level.

(b) Test the claim that the population mean is greater than 85. Use a 0.05 significance level.

Posted Date: May 18, 2024 03:14 PM

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1. A random sample of 49 observations from a normal population yields a sample mean of 85...

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