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CH 21 Q1: Please answer parts B,C, and D. For part C, drop down menu is more or less. b) Let 51 be the sample
CH 21 Q1: Please answer parts B,C, and D. For part C, drop down menu is more or less.
b) Let 51 be the sample proportion of senior women suffering from some form of arthritis, and let 32 be the sample proportion of senior men suffering from some form of arthritis. Create a 95% condence interval for the difference in the proportions of senior men and women who have this disease, [3, - p2. The condence interval is l , l. _ (Round to three decimal places as needed.) c) There is 95% condence, based on these samples, that the proportion of American women, age 65 and older, who suffer from arthritis is between "/0 and % than the proportion of American men of the same age who suffer from arthritis. (Round to one decimal place as needed.) more or less d) Does this suggest that arthritis is more likely to afflict women than men? Select the correct answer below and, if necessary, fill in the answer boxes within your choice. O A. Yes, there is 95% confidence, based on these samples, that about % of senior women suffer from arthritis, while only % of senior men suffer from arthritis. (Round to one decimal place as needed.) O B. No, the interval is too close to 0. O C. Yes, the entire interval lies above 0. O D. No, a conclusion cannot be made based on the confidence interval.A survey was taken of randomly selected Americans, age 65 and older, which found that 401 of 1004 men and 535 of 1065 women suffered from some form of arthritis. a) Are the assumptions and conditions necessary for inference satisfied? Explain. b) Create a 95% confidence interval for the difference in the proportions of senior men and women who have this disease. c) Interpret your interval in this context. d) Does this suggest that arthritis is more likely to afflict women than men? ExplainStep by Step Solution
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