posted by Linda .
. You are running an a single variable ANOVA with five levels of the variable, such as comparing IQ on 5th, 6th, 7th, 8th and 9th graders and the F-value is very large. The significance for the F value is equal to .0003. What can you conclude about the overall effect and what do you now have to do to determine differences among the five levels? (Be specific.)