Problem A: A colleague is exploring the effects of three different teaching approaches (A, B, and C) on final examinatio

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Problem A A Colleague Is Exploring The Effects Of Three Different Teaching Approaches A B And C On Final Examinatio 1 (454 KiB) Viewed 29 times

Problem A: A colleague is exploring the effects of three different teaching approaches (A, B, and C) on final examination grades. Participants are randomly assigned to one of three groups. You have been asked to determine whether there is a difference between any of the group means. Please use the ANOVA template provided to help organize your computations. This resource is found in the examination folder. Approach A X Approach B X2 X22 Approach C X3 X32 X2 36 30 40 45 35 1600 2025 1225 900 1225 Sum of x Sum of (X) 939 37331 34 35 1296 1156 1225 1681 39 35 41 1764 41 1521 1681 2025 2025 43 1849 45 961 42 45 40 46 50 343 1600 2116 2500 14855 36 34 38 297 1296 1156 1444 11103 31 36 42 299 1296 1764 11373 Mean 42.875 37.125 37.375 1. What was the value of SSbetween? _(Hint: It is between 160 and 170) 2. What was the value of SS within? _(Hint: It is between 420 and 425) 3. What was the value of SStotal? 4. What is the value of Fobt? 5. What is the value of Fcrit (Report to two decimal places)? 6. What is your decision? O Reject the null hypothesis and conclude there is a difference between two or more of the means. а Retain the null hypothesis and conclude there is not a statistically significant difference between the means.