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Hypothesis, Critical Value, Test Statistic, Equation, Sample

The manager of a driving school claims that the mean time taken to learn how to drive a car is 8 hours or less for all new drivers. A sample of 16 new drivers showed that the mean time taken by them to learn how to drive the car is 9.5 hours with a standard deviation of 1.5 hours. Test the manager's claim at the 1% significance level
a.Select the null and alternate hypothesis
b.Determine the critical values of the test statistic
c.Which equation listed below would you use?
d.Using the statistical calculator or manual calculation what is the observed statistic and what is your decision regarding the null hypothesis. Provide a one sentence answer

2. A department store manager claims that at least 45% of persons who visited this store make a purchase. In a sample of 400 persons who visited the store 150 made a purchase. Test the manager's claim at the 3% significance level
a.State the null and alternate hypothesis
b.Determine the rejection region for the decision rule
c.Which equation listed below would you use?
d.Using the statistical calculator or manual calculation what is the observed statistic and what is your decision regarding the null hypothesis. Provide a one sentence answer.

3.Complete the ANOVA summary table shown here ... (see attached file).

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A Complete, Neat and Step-by-step Solution is provided in the attached file.

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