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In a study of the cognitive skills required for successful arguments, 62 psychology graduate students were equally divided into two groups. Group 1 was presented with arguments that always attempted to strengthen the favored position. Group 2 was presented with arguments that always attempted to weaken the nonfavored position. If you compare the mean ratings for the two groups with a small-sample t-test, assuming equal variances, determine the validity of this assumption at a = 0.05. Click the icon to view the summary statistics table. First determine the null and alternative hypotheses. Ho: 07 NN Ha: 02 i Data Table - X Group 1 (support Group 2 (weaken favored position) opposing position) Sample size 31 31 Mean 28.3 25 Standard 13.2 11.6 deviation Print Done