10.20 Consider the following data from two independent groups: O Liberals: 2,1,3,2 a Conservatives: 4, 3, 3, 5, 2,4 a. C
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- 10 20 Consider The Following Data From Two Independent Groups O Liberals 2 1 3 2 A Conservatives 4 3 3 5 2 4 A C 1 (312.78 KiB) Viewed 107 times
10.20 Consider the following data from two independent groups: O Liberals: 2,1,3,2 a Conservatives: 4, 3, 3, 5, 2,4 a. Calculate s2 for each group. b. Calculate dfx, dfy, and dftotal- c. Determine the critical values for t, assuming a two-tailed test with an alpha of 0.05. d. Calculate pooled variance, sp pooled e. Calculate the variance version of standard error for each group. f. Calculate the variance and the standard deviation of the distribution of differences between means. 8. Calculate the t statistic. h. Calculate the 95% confidence interval. i. Calculate Cohen's d.