Hi All,
Please I am working on a 2 year data using the Proc mixed procedure. After the analysis (with no error in my SAS log), the P value associated with F value showed a significant difference but my mean values (after Tukey Kramer's adjustement) are not significant.
please how do I explain this.
Please find tattached the result (in excel)
The way to put this is something like: "Overall F-test shows significant variation between means, but multiple testing cannot identify significantly different pairs."
Do not use MS Office files to share information, they are a security risk, and most people (including me) will not open them. Use PDF or TXT or GIF
The overall p value, associated with the F-test, does not have to agree with Tukey-Kramer. There is a lot of literature on the differences between multiple comparison of means procedures, perhaps you want to read up on this subject.
Noted paige miller
The way to put this is something like: "Overall F-test shows significant variation between means, but multiple testing cannot identify significantly different pairs."
Much appreciated PG. I will report it as you have advised.
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