A study was done to determine if students learn better in an online basic statistics class versus a traditional face-to-face (f2f) course. A random sample of 12 students in an online course and 15 students in an f2f course was taken. The scores (out of 100) on the final exam of both groups are shown below.

Online class	60	100	95	80	67	88	76	86	90	95	91	100
f2f	55	70	90	81	67	89	34	76	94	88	100	67	93	76	89

1) What are the degrees of freedom for the pooled two-sample t procedure?

2) The standard error for the mean of the online group is _____

3) The standard error for the mean of the f2f group is _____