Fixed effects analysis in a Two–way ANOVA
Problem 5.6 ANOVA Effect Tests Source DF Sum of Squares F Ratio Prob > F Phos. Type * Glass Type <.0001* Phos. Type*Glass Type
Interaction Plot
Phosphorous Type
Tukey HSD LevelLeast Sq Mean 2A B B Levels not connected by same letter are significantly different.
Glass Effect Plot
Residuals and Normality Plot
Residuals by Predicted
Problem 5.10 Source DF Sum of Squares F Ratio Prob > F Glass Type <.0001* Temp <.0001* Glass *Temp <.0001*
Interaction Plot
Now this is slick!!!!!!!! LevelLeast Sq Mean 1,150A ,150 B ,125 C ,125 C ,125 C ,150 D ,100 E ,100 E ,100 E Levels not connected by same letter are significantly different.
Residuals by Predicted
Residual Plot and Normality Plot
Normality test Shapiro-Wilk W Test W Prob<W Note: Ho = The data is from the Normal distribution. Small p-values reject Ho.