1.)Suppose that the efficacy of a certain drug is 0.43. Consider the sampling distribution (sample size n = 93) for the proportion of patients cured by this drug. What is the mean of this...

1.)Suppose that the efficacy of a certain drug is 0.43. Consider the sampling distribution (sample size n = 93) for the proportion of patients cured by this drug.


What is the mean of this distribution?



What is the standard deviation of this distribution?

2.)Suppose the true proportion of voters in the county who support a school levy is 0.4. Consider the sampling distribution for the proportion of supporters with sample size n = 219.


What is the mean of this distribution?



What is the standard error (i.e. the standard deviation) of this sampling distribution, rounded to three decimal places?

3.)Suppose 13% of students are veterans and 138 students are involved in sports. How unusual would it be to have no more than 17 veterans involved in sports? (17 veterans is about 12.3188%)


When working with samples of size 138, what is the mean of the sampling distribution for the proportion of veterans?



When working with samples of size 138, what is the standard error of the sampling distribution for the proportion of veterans?



Compute P(ˆp≤p^≤ 0.123188).


P(ˆp≤p^≤ 0.123188) =