Statistics and Probability
posted by Adam .
Suppose that the proportion of students who used the Internet as their major resource for school in the past was 66%. A sample of 1000 students was taken and the number of students who used the Internet for their school during the past year was recorded. Let ̂ be the proportion of students surveyed who used the Internet in the past year.
(A) What is the approximate distribution of ̂ ?
(B) What is the probability that the sample proportion ̂ exceeds 68%?
(C) What is the probability that the sample proportion lies between 64% and 68%?