Exercise 11.4.7
The following computer output is for an analysis of variance in which yields (bu/acre) of different varieties of oats were compared.
Sums of Mean Source df squares square F ratio Prob
Group 2 76.8950 38.4475 0.40245 0.6801
Error 9 859.808 95.5342
Total 11 936.703
Figure 6: Problem 11.4.7
(a) How many varieties (groups) were in the experiment?
(b) State the conclusion of the ANOVA.
(c) What is the pooled standard deviation, spooled