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6. A researcher obtained the following posttest scores: 2 2 4 5 6 5 a) Using a calculator, obtain the relevant values and construct an ANOVA table. b) .05, is there a difference between the means of the posttest scores? At á
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up is A, 2nd aup o se is B and 3rd grao npǐse. The sample mean of hhe ih 1S ni mi is he mbey of obseyvahons the ih g roup,,3The awand mean whene is bhe total number of aroups 3 3.6 N ow, be eenmops sum of squnnes is 5a( 2-3%) 5x(4-3, 6) + 2- + 5x(4.Mean squanes behween moups is 20.8 10 4 3-I MSE SSE 18.8 -1.57. 15-3 whe Jo VW 6 62. MSE 1:57 ANOVA TABLE Sources oF Vaiahon Berween ouf s E eror 20-8 0.4 6 62 2 18 857 24 3 9.6 Toral b) Leh M denotes the rpulation mean of the p2,3. The nutl and athenaive hipo bhes es areHm.. μ Ni : fon at Least one (W); ,J-1, 2, 3 ; ¡キ vejech a Level 0 0 2 12 3 83. Here F662 3 89 Fo o 0 52,12 Ar d 05, wehave enough evidence ro eo nebade Hve means of

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