Question: A random sample of 25 values is drawn from a mound-shaped and symmetric distribution. The sample mean is 8 and the sample standard deviation is

A random sample of 25 values is drawn from a mound-shaped and symmetric distribution. The sample mean is 8 and the sample standard deviation is 2. Use a level of significance of 0.05 to conduct a two-tailed test of the claim that the population mean is 7.5

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