home *** CD-ROM | disk | FTP | other *** search
/ NetNews Usenet Archive 1992 #30 / NN_1992_30.iso / spool / bit / listserv / statl / 2212 < prev    next >
Encoding:
Text File  |  1992-12-13  |  1.3 KB  |  25 lines
  1. Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
  2. Path: sparky!uunet!munnari.oz.au!spool.mu.edu!wupost!howland.reston.ans.net!paladin.american.edu!auvm!QMRELAY.MAIL.CORNELL.EDU!DICK_DARLINGTON
  3. Message-ID: <STAT-L%92121316120756@VM1.MCGILL.CA>
  4. Newsgroups: bit.listserv.stat-l
  5. Date:         Sun, 13 Dec 1992 16:11:20 -0500
  6. Sender:       STATISTICAL CONSULTING <STAT-L@MCGILL1.BITNET>
  7. From:         dick darlington <dick_darlington@QMRELAY.MAIL.CORNELL.EDU>
  8. Subject:      Finding critical F
  9. Lines: 14
  10.  
  11.                                                                     12:42 PM
  12.   OFFICE MEMO                                                 Time:
  13.                       Subject:
  14.                       Finding critical F                            12-08-92
  15.                                                               Date:
  16.  
  17. In response to Brian Day's question, one can use Systat's FIF (F inverse
  18. function) operator to find critical values of F for any specified values of
  19. alpha, df1 and df2.  Day specified df1 = 278 and df2 = 500, but did not specify
  20. alpha.  Thus I entered into Systat's editor a column headed ALPHA containing
  21. the four values .05, .025, .01, .005.  Then I issued the command
  22. >let f = fif(1-alpha, 278, 500)
  23. Systat returned the following four values of F: 1.187, 1.227, 1.275, 1.308.
  24. Dick Darlington, Psychology, Cornell
  25.