Thursday

September 18, 2014

September 18, 2014

Posted by **Lezlie** on Wednesday, June 11, 2008 at 1:18am.

On their own

n=10

M=78

SS=1420

Given Solutions

n=15

M=66

SS=2030

ss stands for sum of squares

- statistics -
**PsyDAG**, Thursday, June 12, 2008 at 2:24amTo find the significance of the difference between two means, we need to divide this difference by the standard error of the difference between means.

To find the standard error of the difference between means, we need to know the standard deviation (SD) of both groups.

To get the standard SD, you need both sum of squares (ΣX^2) and the sum of the scores squared ([ΣX]^2). You only give me one of these terms.

We need more information — or the corect information.

I hope this helps. Thanks for asking.

**Answer this Question**

**Related Questions**

statistics - Oxytocin is a naturally occurring brain chemical that is nicknamed ...

science - i just want to know if my answeres are correct! A.The problem = the ...

science someone please check my answers - i just want to know if my answeres ...

Statistics - I'm having a problem with this problem. Please help. Thank you.. ...

Math- Still Don't Understand! - I do not understand how to work this problem out...

Math - Tell me how to figure out these probabilities In how many different ...

6th grade Math - Having a problem on a proportion question. The problem is you ...

math - What strategy did you use in solving this problem? 22. Suppose that you ...

maths - number of films seen by a group of people during the past year No of ...

Grammar (Ms. Sue) - Indentify the tense of the underlined verb in each sentence ...