Question

Suppose that the efficacy of a certain drug is 0.56. Consider the sampling distribution (sample size n = 216) for the proportion of patients cured by this drug.

What is the mean of this distribution? _____________

What is the standard error of this distribution? ________________

(Round answer to four decimal places.)

Answer 1

SOLUTION:

GIVEN THAT

P=0.56

q=1-p

=1-0.56

=044

n=216

sampling distribution of mean

p^=p^

=1.56   

standard error =(( * (1 - )) / n)

=((0.56 * (0.44)) / 216)

SE=0.0338