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ANOVA: Computer Anxiety Rating Scale (CARS) measures level of computer anxiety.

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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:

SOURCE DEGREES OF FREEDOOM sum of squares f
Among majors 5 3,172

Within majors 166 21,246
Total 171 24,418
MAJOR n MEAN

Marketing 19 44.37
Management 11 43.18
Other 14 42.21
Finance 45 41.8
Accountancy 36 37.56
MIS 47 32.21

a) Complete the ANOVA summary Table
b) At the 0.5 significance,b is there evidence of a difference in the mean computer
anxiety experienced by different majors?
c) If the results in (b) indicate that is appropriate, use the Turkey-Kramer procedure to determine which majors different in mean computer anxiety. Discuss your findings.

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This solution gives the step by step method for ANOVA and Turkey-Kramer Procedure.

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