Question: Effect of larger sample size The study described in Exercise 33 is repeated with a large sample of 1000 subjects Assume that the sample mean

Effect of larger sample size The study described in Exercise 33

Effect of larger sample size The study described in Exercise 33 is repeated with a large sample of 1000 subjects Assume that the sample mean is once again 0 5 pound and the sample standard deviation is once again 4 pounds a Find the t statistic for testing Ho 0 versus H 0 Is the value o the t statistic greater than or less than the value obtained with a smaller sample of 100 b Find the P value for testing Ho 0 versus H 0 Can you conclude that the diet produces a mean weight loss that is greater than 0 Use the a 0 05 level of significance d Explain why the mean weight loss is not of practical significance even though the results are statistically significant at the 0 05 level

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