Question: Determine whether an observed sample mean of 84 based upon a sample of n=25 is significantly different from a (Null Hypothesized) population mean of 81

Determine whether an observed sample mean of 84 based upon a sample of n=25 is significantly different from a (Null Hypothesized) population mean of 81 with a standard deviation of 10.

a) State your hypothesis

b) State your alpha value and the critical values

c) Show your calculations

d) State your decision regarding the null hypothesis

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