1. The mean annual turnover rate of a bottle of aspirin is 6.0 with a population standard deviation of 0.50 . It is suspected that the mean turnover has changed and is not 6.0 . Use the $5%$ level of significance. A random sample of 64 bottles showed a sample mean turnover rate of 5.84 . a) State the null and alternative hypotheses for a two-sided test. b) Set up a diagram showing the decision rule. c) Evaluate the test statistic. d) Would you accept or not accept the null hypothesis? e) Find the p-value for the test.

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1. The mean annual turnover rate of a bottle of aspirin is 6.0 with a population standard deviation of 0.50 . It is suspected that the mean turnover has changed and is not 6.0 . Use the

5%

level of significance. A random sample of 64 bottles showed a sample mean turnover rate of 5.84 . a) State the null and alternative hypotheses for a two-sided test. b) Set up a diagram showing the decision rule. c) Evaluate the test statistic. d) Would you accept or not accept the null hypothesis? e) Find the p-value for the test.

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