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8. First you decide on the null hypothesis. Then you analyze the data and calculate the...

8. First you decide on the null hypothesis. Then you analyze the data and calculate the probability value. You choose an appropriate alpha level and look at this probability value, and depending on what it is, you decide whether you can reject the null hypothesis. If the alpha level is <.05 do you reject or accept?

9. A group of faculty members at a local university agreed that the average annual salary for a new professor with limited experience would be $35,000. In a sample of 30 new professors falling into this category at a larger university showed the mean annual salary as $42,000 with a standard deviation of $1,800. Using the formulas below solve for t

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