Question

1.11 points I Freitous Newer: PmttcroStJts3 13.E.023. My Nobes Ask Your A study investigated the e ects of physical atique on hypothesized that increased fatigue wculd be assoiated with a greater number of errers. The folng is an Ftable f e performance of professional tennis players. Researchers measured the number o un orced errors committed b en oith greatern ฮ random sam using th one-ay within-subjects ANOVA c o 12 proressional tennis p ayers during the first three sets of a match. They s is for thie hypothetical study Between gro'ps ectwcen persons Within qrcups Cerrr5 a) camplaA tha F-tahle. groups within groups (eror) Tctal Make a deci디on to retain or reject th° null hypothesis. (Assume alpha equal to 0.05.) Retain tha nill hypothesis. ⓦ Rajectthe null hypothesis. (b] Estimate ect sz using partial omegasquared: . (Round your answer to two decimal places.

Answer 1

a)

Source	SS	df	MS	F obt
btw grp	30	2	15	6
btw persons	55	11	5	2
error	55	22	2.5
total	140	35

b)

partial omega square =(k-1)*(FTr-1)/((k-1)*(FTr-1)+nk) =

0.22