You asked a random sample of 20 college students if they approved of facial piercings. 8 out of 20 said "Yes". You replicate this sample many times and take a bootstrap sample. The results are shown below (Y=yes, N=no): YNNNN YNNYN NNYNN NYNYY What proportion of your bootstrap sample said "Yes"? (Give your answer as a decimal)

A law school with a total enrollment of 5000 students is known to have 40% women in its student body.  Suppose we take a random sample of 100 students from the law school.   What value should we expect for our sample proportion of women?  What is the standard error?  According to the Central Limit Theorem should I expect the sampling distribution of the sample proportion to be approximately Normal? 

At a university, 61% of the 7400 students are female. The student newspaper reports results of a survey of a random sample of 50 students about various topics involving alcohol abuse, such as participation in binge drinking. They report that their sample contained 26 females.