Be sure that Minitab knows where to find your downloaded macro. Choose . Under Macro location browse to the location where you save macro files.
If you use an older web browser, when you click the Download button, the file may open in Quicktime, which shares the .mac file extension with Minitab macros. To save the macro, right-click the Download button and choose Save target as.
Three columns containing the results from a two-factor experiment with a single replicate
Suppose you have the following results of such a two-factor experiment in C1-C3 of the worksheet:
C1 | C2 | C3 |
---|---|---|
Temp | Pressure | Y |
40 | 20 | 7.9 |
40 | 25 | 11.3 |
40 | 30 | 13.5 |
50 | 20 | 12.7 |
50 | 25 | 10.9 |
50 | 30 | 10.2 |
60 | 20 | 11.3 |
60 | 25 | 10.8 |
60 | 30 | 11.0 |
To run the macro, choose and type:
%TUK1DF C3 C1 C2
Click Run.
The output includes the sum of squares for both nonadditivity and error, the significance level, the test statistic, the critical value, and the conclusion.
"The test partitions the residual sum of squares into a single-degree-of-freedom component due to nonadditivity (interaction) and a component for error..."
Douglas C. Montgomery, Design and Analysis of Experiments, 5th Ed, 2001, pp 191-194.