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Given the following hypotheses: H0: μ = 470 H1: μ ≠ 470 A random sample of...

Given the following hypotheses:

H0: μ = 470

H1: μ ≠ 470

A random sample of 13 observations is selected from a normal population. The sample mean was 475 and the sample standard deviation 9. Using the 0.05 significance level:

  1. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.)
  1. Compute the value of the test statistic. (Round your answer to 3 decimal places.)
  1. What is your decision regarding the null hypothesis?
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