Attention: These data are different from your previous questions!

Now Lynn takes a different approach. They collect another two samples - GPA from students taking a semester of in-class courses, and then thesamestudents' GPA when they are taking a semester of online courses. The data set is below. They predict that they will finda difference betweenin-class GPA andonline GPA for the same students.

Student	In Class GPA	Online GPA
Amy	4.0	3.5
Brad	3.5	2.2
Caroline	3.7	2.0
Dan	3.5	3.5
Emily	3.6	3.3
Frank	3.2	3.2
George	3.3	2.1

For this test, we should use ______ critical values and p-values.

Group of answer choices

a) One tail

b) Two tail

c) Three tail

d) None of the answers