For example 8.65 in a study to compare the effects of two relievers it was found
ID: 3153941 • Letter: F
Question
For example 8.65 in a study to compare the effects of two relievers it was found that of n1 = 200 randomly selected individuals who used the first pain reliever, 93% indicated that it relieved their pain. Of n2 = 450 randomly selected individuals who used the second pain reliever, 96% indicated that relieved their pain. Find a 99% confidence interval for the difference in the proportions experiencing relief from pain for these two pain relievers (-0022.0062) (-0006.066) (-0059.0119) (-0902. 1 235) For Exercise 9.1 find the appropriate rejection regions tor me large-sample test statistic z in this case. A two test at the 5% significance level. Reject Ho if 196 Reject Ho 4 > 1.645 Reject Ho 4 1.645 Reject Ho if > 1.96Explanation / Answer
(1) The 99% confidence interval (-0.022, 0.082)
(2) In question two all options are wrong
right answer: Rejecting Ho, if Z<1.96
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