Consider the medical diagnosis of breast cancer with mammograms. An AP story (September 19, 2002) said that a woman has about a 50% chance of having a false-positive diagnosis over the course of 10 annual mammography tests. Relate this result to the chance of eventually making a Type I error if you do lots of significance tests.
Answer to relevant QuestionsFor a test of H0: p = 0.50, the z test statistic equals 1.04. a. Find the P-value for Ha: p > 0.50. b. Find the P-value for Ha: p ≠ 0.50. c. Find the P-value for Ha: p < 0.50. d. Do any of the P-values in part a, part b, ...A medical researcher conducts a significance test whenever she analyzes a new data set. Over time, she conducts 100 independent tests. a. Suppose the null hypothesis is true in every case. What is the distribution of the ...For a large supermarket chain in Florida, a women’s group claimed that female employees were passed over for management training in favor of their male colleagues. The company denied this claim, saying they picked the ...In a recent study, 10 272 moderately obese subjects were randomly assigned to one of three diets: low-fat, restricted-calorie; Mediterranean, restricted calorie; or low-carbohydrate, non-restricted- calorie. The prediction ...Example 8 described a study about various therapies for teenage girls suffering from anorexia. For each of 17 girls who received the family therapy, the changes in weight were 11, 11, 6, 9, 14, -3, 0, 7, 22, -5, -4, 13, 13, ...
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