Question: Using your work in Exercise 1, calculate the variance and the standard deviation of the distribution of differences between means for the data from liberals and conservatives.
Exercise 1: Calculate the variance version of standard error for the data in Exercise 2-for the liberals (2, 1, 3, 2) and then for the conservatives (4, 3, 3, 5, 2, 4).
Exercise 2: Calculate s2 for the following data:
Liberals: 2, 1, 3, 2
Conservatives: 4, 3, 3, 5, 2, 4