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10.55 Consider an experiment with four groups, with eight values in each. For the ANOVA summary table below, fill in all the missing results:SourceFAmong Groupsc-1 = ?SSA= ?MSA=80F stat = ?Within Groupsn-c = ?SSW= 560MSW= ?Totalsn-1 = ?SST = ? Df (among) = c – 1 = 4 – 1 = 3Df (within) = n – cSourceFAmong Groupsc-1 = 3SSA= 240MSA=80F stat = 4 = 32 – 4Within Groupsn-c = 28SSW= 560MSW=20Totalsn-1 = 31SST = 800 = 28 Df (total) = n – 1 = 32 – 1 = 31MSA = SSA/ df (among)80 = SSA/3SSA = 80*3 = 240SST = SSA + SSW = 560 + 240 = 800MSW = SSW/df (within) = 560/28 = 20F = MSA/MSW = 80/20 = 4 Degrees of FreedomSum of SquaresMean Square (VarianceDegrees of FreedomSum of SquaresMean Square (Variance
10.57 The Computer Anxiety Rating Scale (CARS) measures an individual’s level of computer anxiety, on a scale from 20 (no anxiety) to 100 (highest level of anxiety). Researchers at Miami University administered CARS to 172 business students. One of the objectives of the study was to determine whether there are differences in the amount of computer anxiety experienced by students with different majors. They found the following:We can conclude that there is difference in the mean computer anxiety experienced by different majors.Degrees of FreedomSum of SquaresMean of Squares (Variance)a.Complete the ANOVA summary table.SourceFAmong Majors53,172Within Majors16621,246Total17124,418MajorNMeanMarketing1944.37Management1143.18Other1442.21Finance4541.8Accountancy3637.56MIS4732.21 MSA = SSA/df (among) = 3172/5 = 634.4MSW = SSW/df (within) = 21,246/166 = 127.99F = MSA/MSW = 634.4/127.99 = 4.96Degrees of FreedomSum of SquaresMean of Squares (Variance)