Saturday

September 20, 2014

September 20, 2014

Posted by **Emmanuel** on Monday, November 15, 2010 at 9:34pm.

- statistics -
**MathGuru**, Monday, November 15, 2010 at 9:41pmFormula:

CI90 = mean + or - 1.645(sd/√n)

With your data:

CI90 = 13.6 + or - 1.645(17/√40)

I'll let you take it from here.

**Answer this Question**

**Related Questions**

statistics - A study of 40 psychology teachers showed that they spent, on ...

Beginning of Stats - A study of 50 mathematics professors showed that they spend...

statistics - A study of 35 professors showed that the average time they spent ...

statistics - A sample of 40 CDs from a student's collection showed a mean length...

Statistics - 1. A study of 40 people found that they could do on the average15 ...

ELEMENTARY STATISTICS - 50 MATH PROFESSORS WERE ASKED HOW LONG IT TAKES TO GRADE...

statistics - A sample of 400 high school students showed that they spend an ...

Statistics - Please help!! I have no idea how to do this question. 14. A sample ...

Statistics - 1. A study of 40 people found that they could do on the average15 ...

Statistics - A study was conducted to estimate the mean amount spent on ...