[EMAIL PROTECTED] wrote: > I ran a z test on two sets of scores using the Excel data analysis > tool to seek to determine whether the difference in the means were > statistically significant. What I do not understand is how to read > the results of the z test Excel returns. It give me a "z", "P" one > tail and "P" two tail. Can anyone explain to me how to interpret > these results? Thanks.
If you did the z-test by hand, how would you interpret the z-value? The results from Excel can be interpreted the exact same way. (And I'd also like to take this opportunity to offer kudos to Microsoft for making documentation on statistical testing that is totally incomprehensible and useless.) -- Paige Miller Eastman Kodak Company [EMAIL PROTECTED] http://www.kodak.com "It's nothing until I call it!" -- Bill Klem, NL Umpire "When you get the choice to sit it out or dance, I hope you dance" -- Lee Ann Womack . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
