A management consulting company presents a three-day seminar on project manageme

Question

A management consulting company presents a three-day seminar on project management to various clients. The seminar is basically the same each time it is given. However, sometimes it is presented to high-level managers, sometimes to midlevel managers, and sometimes to low-level managers. The seminar facilitators believe evaluations of the seminar may vary with the audience. Suppose the following data are some randomly selected evaluation scores from different levels of managers who attended the seminar. The ratings are on a scale from 1 to 10, with 10 being the highest. Use a one-way ANOVA to determine whether there is a significant difference in the evaluations according to manager level. Assume a = 0.05. Since the observed F = critical F = the decision is hypothesis. At 0 = 0.05, there

Explanation / Answer

Obsrerved F = 12.33

Critical F = 3.68 fo dF = 17

The decision is to reject null hypothesis where P = 0.000682

Anova: Single Factor SUMMARY Groups Count Sum Average Variance High Level 5 38 7.6 0.8 Midlevel 7 62 8.857143 0.809524 Lowlevel 6 36 6 1.6 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 26.38730159 2 13.19365 12.32503 0.000682 3.68232 Within Groups 16.05714286 15 1.070476 Total 42.44444444 17

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