HW10_part2 answers

HW10_part2 answers - HW10_part2 Answers: Additional...

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Unformatted text preview: HW10_part2 Answers: Additional Problems: 1. One-way between-subjects ANOVA H0 : 1= 2= 3; H1: at least one pair of the means are different. =.05, Fcrit(2, 21)=3.47; Fobs(2, 21)=8.60; Reject the H0 Source SS df MS Factor A 4441.44 2 2220.72 Error 5419.58 21 258.08 Total 9861.02 23 F 8.60 2. (a) Fobs should decrease. Because the means are now closer together, which makes the SSA smaller and thus MSA is smaller, and finally smaller Fobs. (b) H0 : 1= 2= 3; H1: at least one pair of the means are different. =.05, Fcrit(2, 21)=3.47; Fobs(2, 21)=.98; Fail to reject the H0 Source SS df MS Factor A 505.44 2 252.72 Error 5419.58 21 258.08 Total 5925.02 23 F .98 NOTE: Your results should be consistent with your prediction before the calculation. If not, you have to work on your prediction and think more about how things change. (c) SSA , MS A, SSTotal and Fobs is smaller here, all the other quantities remain the same. ...
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This note was uploaded on 06/29/2008 for the course PHYS 10 taught by Professor Gruner during the Spring '08 term at UCLA.

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