Recall the data from the Physicians’ Health Study: Of the 11,034 physicians who took the placebo,...

Recall the data from the Physicians’ Health Study: Of the 11,034 physicians who took the placebo, 138 devel- oped ulcers during the study. Of the 11,037 physicians who took aspirin, 169 developed ulcers.

a. Use an appropriate applet to find and report the theory-based 95% confidence interval.

b. Does the 95% confidence interval contain 0? Were you expecting this? Explain your reasoning.

c. Interpret the 95% confidence interval in the context of the study.

d. Use the 95% confidence interval to state a conclusion about the strength of evidence in the context of the study.

e. Relatively speaking, is the 95% confidence interval narrow or wide? Explain why that makes sense.

Expert Solution

orchestra answered 2 years ago

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