Question

• 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.
• 2A : 1.0 points
Find E(W)

correct
You have used 2 of 2 submissions
• 2B : 1.0 points
Find SE(W)

You have used 1 of 2 submissions
• 2C : 1.0 points
Find E(S)

You have used 1 of 2 submissions
• 2D : 1.0 points
Find SE(S)

Answer 1

PL HELP

Answer 2

E(W)=12

Answer 3

2C- E(S)= 67

Answer 4

2b 2.76

Answer 5

2d 1.5518

Answer 6

can you explain yogeshdave how you got this results and thanks