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1) Suppose that H0: mu = 75. A sample of 15 reveals the sample mean to be 80 and a standard deviation of 10. Compute

1) Suppose that H0: mu = 75. A sample of 15 reveals the sample mean to be 80 and a standard deviation of 10. Compute the test statistic

2) From the question above compute the degrees of freedom and provide the computation.

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