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10.57 The Computer AnxietyRating Scale (CARS) measures an individuals level of computer anxiety, on ascale from 20 (no anxiety) to 100 (highest level of anxiety). Researchers at MiamiUniversityadministered CARS to 172 business students. One of the objectives of the studywas to determine whether there are differences in the amount of computeranxiety experienced by students with different majors. They found thefollowing:

Source

Degrees ofFreedom Sum of Squares MeanSquares F

Amongmajors 5 3,172

Withinmajors 166 21,246

Total 171 24,418

Major n Mean

Marketing 1944.37

Management11 43.18

Other14 42.21

Finance45 41.80

Accountancy36 37.56

MIS47 32.21

a.Complete the ANOVAsummary table.

b.At the 0.05 levelof significance, is there evidence of a difference in the mean computer anxietyexperienced by different majors?

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