Wednesday

April 23, 2014

April 23, 2014

Posted by **Din123** on Sunday, May 12, 2013 at 12:24pm.

* 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)

- Statistics -
**Din123**, Sunday, May 12, 2013 at 12:27pmFind E(W) is 12, but I don't know the others. Could someone help me?

- Statistics -
**Anonymous**, Sunday, May 12, 2013 at 11:46pmE(S)=11,1667

- Statistics -
**Din123**, Monday, May 13, 2013 at 7:29amThis E(S) is wrong

- Statistics -
**Din123**, Monday, May 13, 2013 at 12:31pmE(S) = 67

**Related Questions**

statistics - draw a simple random sample of 15 students from your class,and ...

statistics - 1. The on-campus housing costs for a semester at a state university...

statistics - 1. A simple random sample of 400 students is taken at a large ...

statistics - 1. A simple random sample of 400 students is taken at a large ...

statistics - Professor Smith conducted a class exercise in which students ran a ...

statistics - The times taken to complete a statistics test by all students are ...

statistics - The times taken to complete a statistics test by all students are ...

statistics - using a simple random sampling, select a sample of 12 students out ...

Statistics - 28. A group of statistics students decided to conduct a survey at ...

Basic Statistics - A population of 300 voters contains 147 Republicans, 135 ...