The following table contains the statistics quiz scores for 18 students as a function of their phobia

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The following table contains the statistics quiz scores for 18 students as a function of their phobia level and gender.

Low phobia Moderate phobia High phobia Males 4 6. 4 9. 3 4 Females 9. 6.


a. Compute the two-way ANOVA for these data, and present your results in the form of an ANOVA summary table (see Table 14.2).
b. Conduct the appropriate follow-up tests to determine which phobic levels differ significantly from other levels. Are these follow-up tests justified by your results in part (a)? Explain.


Table 14.2

Source SS df MS Composer Music background Composer x background 80.1 5.68 1.92 3 26.7 9.0 9.0 18.3 3 32 6.1 1.30 Error (

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Introductory Statistics For The Behavioral Sciences

ISBN: 9780470907764

7th Edition

Authors: Joan Welkowitz, Barry H. Cohen, R. Brooke Lea

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