Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

Share this Page URL
Help

7.1 Trimmed Means and a One-Way Design > 7.1.4 R Function box1way - Pg. 299

Chapter 7 One-Way and Higher Designs for Independent Groups 299 hypothesis of equal trimmed means, with F b = where H = ¯ h j , X t = ¯ h j X t j /H and S 2 = j 2 (n j - 1)s wj ¯ ¯ h j ( X t j - X t ) 2 , 1 - (h j /H )S 2 j h j - 1 . When the null hypothesis is true, F b has, approximately, an F distribution with (1 - f j )S 2 j S 2 f j j and J 2 2 1 = ^ + J j=1 S 4 (1 - 2 f j ) j 2 2