Bioequivalence and Bioavailability Forum

No paper, pencil, brain :-( [Software]

posted by Helmut - Vienna, Austria, 2009-09-22 18:22  - Posting: # 4231
Views: 16,478

Dear Yuvraj!

» 90% CI for Upper limit=1.329927721 which is nearly equal to 1.33
» 90% CI for Lower limit=1.07998416 which is nearly equal to 1.08
»
» Is it right, Sir?

Oops, you got me!
You are right – and I am wrong.
If I use values with no rounding I get exactly 1.08 and 1.33 up to the numeric precision of my machine.
Lesion learned: Never trust in an old fart with a pocket calculator too lazy to fire up some statistical software.
Terribly sorry for the confusion…

—
Cheers,
Helmut Schütz


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Complete thread:

• Sample Size Calculation - sasikumar, 2008-04-03 09:19 [Software] 
  • Sample Size Calculation (SAS) - Jaime_R, 2008-04-03 13:13
  • Sample Size Calculation - d_labes, 2008-04-23 11:54
    • Sample Size Calculation - balakotu, 2009-09-07 07:51
    • Sample Size Calculation - yuvrajkatkar, 2009-09-19 09:24
      • Paper, pencil, brain ;-) - Helmut, 2009-09-19 11:48
        • Paper, pencil, brain ;-) - yuvrajkatkar, 2009-09-21 15:10
          • Paper, pencil, brain ;-) - Helmut, 2009-09-21 15:23
          • Paper, pencil, brain ;-) - Helmut, 2009-09-21 18:33
            • Paper, pencil, brain ;-) - yuvrajkatkar, 2009-09-22 16:09
              • No paper, pencil, brain :-( - Helmut, 2009-09-22 18:22
                • about your lectures - yuvrajkatkar, 2009-09-23 07:27
                  • About Trust - Helmut, 2009-09-23 13:50
                    • sample size calculation - yuvrajkatkar, 2009-10-01 13:33
                      • inter- / intra- / total variance - Helmut, 2009-10-01 13:52
                        • inter- / intra- / total variance - yuvrajkatkar, 2009-10-01 17:13
                          • Theta?! - Helmut, 2009-10-01 17:30
                            • sample size for parallel design - yuvrajkatkar, 2009-10-03 07:44
                              • Reference? - Helmut, 2009-10-03 13:46
                                • MSE obtain from Parallel study in WinNonlin - yuvrajkatkar, 2009-10-09 16:46
                                  • Parallel study in WinNonlin - Helmut, 2009-10-10 10:51