Question A: For the following study, decide the a) F cutoff needed, b) S2 betwee

Question

Question A: For the following study, decide the a) F cutoff needed, b) S2 between, c) S2 within, d) F value, and e) decision. Group 1: n = 10, M = 7.4, S2 = 0.82 Group 2: n = 10, M = 6.8, S2 = 0.9 Group 3: n = 10, M = 6.8, S2 = 0.8 Third, what is the S2 within?

Question A: For the following study, decide the a) F cutoff needed, b) S2 between, c) S2 within, d) F value, and e) decision.

Group 1: n = 10, M = 7.4, S2 = 0.82

Group 2: n = 10, M = 6.8, S2 = 0.9

Group 3: n = 10, M = 6.8, S2 = 0.8

Fourth, what is the F value?

Explanation / Answer

a) F cutoff needed=3.35, b) S2 between=2.4, c) S2 within=22.68, d) F value=1.43, and e) decision.: fail to reject null hypothesis H0 as critical F=3.35 is more than calculated F=1.43

here null hypothesis H0: all group means are equal

alternate hypothesis Ha: atleast one group mean is different from another

within sum of square=sum(nj-1)sj2=22.68

between sum of squar=sum(nj(xj--x-)2)=2.4

following information has been generated

ANOVA SOURCE DF SS MS F CRITICAL F(0.05) BETWEEN 2 2.4 1.2 1.43 3.35 WITHIN(ERROR) 27 22.68 0.84 TOTAL 29

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