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Question: The main trial in problem 2 is conducted and involves a total of 200 patients. Patients are enrolled and randomized to receive either the experimental medication or the placebo. The data shown below are collected at the end of the study after 6 weeks on assigned treatment.
a) Test if there is a significant difference in mean systolic blood pressure between groups using = 0.05.
b) Test if there is a significance difference in the proportions of hypertensive patients between groups using =0.05
Pain Relief Treatment:
Pain relief No pain Relief New Medication 44 76 Placebo 21 99
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Use a test of the difference between proportions when answering these questions.
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