Answer Happy

Researchers conducted a study and made a claim that the average salary for all jobs in Virginia is less than $67,000. We want to test the claim using a=0.05, and assume that your data is normally distributed and the population standard deviation o is not known. a) Identify the null and alternative hypotheses (use symbols or spell out symbols). b) Identify if this test is a left tail, right tail, or two-tailed test. Explain why. c) Show the formula that you would use to find the Test Statistic. (You don't need to compute anything here, or substitute any values in the formula, just provide the appropriate general formula.) d) What Excel formula would you use to find the p-value in this scenario? You don't need to compute the p-value, just provide the formula.