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Use the P-value method to test the claim that for the adult population of one town,...

Use the P-value method to test the claim that for the adult population of one town, the mean annual salary is $30,000. Sample data are summarized as n = 17, = $22,300 and s = $14,200. Use a significance level of α = 0.05. Is the assumption correct?

  1. State the requirement
  2. State the null and alternative hypotheses with the correct symbols
  3. Write all the statistics
  4. Write the formula of the test statistic and find the test statistic (you may use a calculator, but you are required to write down the command and all the numbers you enter)
  5. Find the critical value or the P-value (you may use a calculator, but you are required to write down the command and all the numbers you enter)
  6. Decide to reject or fail to reject H0 and explain the reason
  7. Wording the conclusion
  8. Answer the question based on your result above
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