You plan to sample from the 3500 undergraduate students enrolled at the University of Rochester to compare the proportions of female and male students who would like to see the U.S. have a female president.

a) Suppose that you use random numbers to select students, but you stop selecting females as soon as you have 40. Is the resulting sample a simple random sample? Why or why not?

b) What type of sample is the sample in (a)? What advantage might it have over a simple random sample?

Additional information

This question is based on the Statistics and it is about a study where 3500 undergraduate students are surveyed to compare the female and male student proportions who would like to see the US president being a female.