Question

11. (1 pt).Consider the following data from two independent groups:

Liberals: 2, 1, 3, 2

Conservatives: 4, 3, 3, 5, 2, 4

Calculate s^2 for each group.

12. (1 pt). For the data in Problem 11, calculate dfX, dfY, and dftotal.

13. (1 pt). For the data in Problem 11, determine the critical values for t, assuming a two-tailed test with an alpha of 0.05

14. (1 pt). For the data in Problem 11, calculate the pooled variance, spooled2.

15. (1 pt). For the data in Problem 11, calculate the variance version of the standard error for each group.

16. (1 pt). For the data in Problem 11, calculate the variance and standard deviation of the distribution of differences between the means.

17. (1 pt). For the data in Problem 11, calculate the t statistic.

18. (1 pt). For the data in Problem 11, calculate the 95% confidence interval.

19. (1 pt). For the data in Problem 11, calculate Cohen’s d.

Answer 1