You want to figure out if there is a difference in lengths between male and female kestrels (kestrels are small falcons found all over Northern Virginia). You catch 12 females and 10 males with the...

You want to figure out if there is a difference in lengths between male and female kestrels (kestrels are small falcons found all over Northern Virginia). You catch 12 females and 10 males with the following results (in cm):

Females: 27.7 25.4 26.4 28.5 27.4 28.0 28.7 26.7 25.6 25.3 27.5 27.8

Males: 20.3 24.1 24.1 24.6 23.2 22.4 23.2 21.2 24.2 19.1

Is there a difference in lengths? Use α = .01. Calculate everything yourself