The mean salary of federal employees is $73,500. The average salary of 30 state employees is $72,00. With a standard deviation of $3,500. At alpha = 0.10 level of significance can it be concluded that state employees earn less than federal employees? A: State the null and alternative hypotheses. B: What are the critical Z values needed to reject the null hypothesis. C: Calculate the Z statistic for the sample. D: From the results of C), do you reject or fail to reject the null hypothesis? E: Find the "P" value and is it less than alpha? Does it support your answer in part D)?

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