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2. A clinical psychologist wished to compare three methods for reducing hostility levels in university students, and used a certain test (HLT) to measure the degree of hostility. A high score on the test indicated great hostility. The psychologist 1 | Page used 15 students who obtained high and nearly equal scores in the experiment. Three methods were used with the results shown in the following Table. Method Test Scores 96 , 79, 91, 85, 84 2 77, 76, 74, 73 3 66, 73, 69, 66, 77, 75 Use these data to perform an analysis of variance (ANOVA) to determine whether there are differences among mean scores for these three methods. Activate Windows Use a = 0.05. [8marks] Go to Settings to activate Wing