Question: a study investigated the effects of physical fatigue on the...
A study investigated the effects of physical fatigue on the performance of professional 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 a match. They hypothesized that increased fatigue would be associated with a greater number of errors. The following is an F-table for this hypothetical study using the one-way within-subjects ANOVA.
|Source of Variation||SS||df||MS||Fobt|
|Within groups (error)||44|
(a) Complete the F-table.
Make a decision to retain or reject the null hypothesis. (Assume alpha equal to 0.05.)
Retain the null hypothesis
Reject the null hypothesis.
(b) Estimate effect size using partial omega-squared: ωP2. (Round your answer to two decimal places.)
ωP2 = ___?