A power of 90 and a two-sided test of size 005 are desired

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You want to compare response rates (percents) of two regimens. A power of 90% and a two-sided test of size 0.05 are desired. How many patients are needed to detect a difference between true response rates of p1=30% and p2=50%? Let the proportion in group 1 be q1 = 0.4. Use the appropriate formula and show your work

Reference no: EM13609078

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