He said he investigated the effect of physical fatigue on the performance tennis players. Researchers measured the number of unforced errors committed by a random sample of 12 professional tennis players during the first three sets of match. De hypothesize that increased fatigue would be associated with a great number of errors. The following is a F - table for this hypothetical study using the one way within subjects ANOVA.

table:

source of. Ss. df. ms. F obt

variation

between

group. ? ? 12. ?

between

person. ? ? 3

with group

error. 55. ? ?

total. ? ?