posted by Din123 on .
A simple random sample of 50 students is taken from a class of 300 students. In the class,
* the average midterm score is 67 and the SD is 12
* there are 72 women
Let W be the number of women in the sample, and let S be the average midterm score of the sampled students.
1 - Find E(W)
2 - Find SE(W)
3 - Find E(S)
4 - Find SE(S)