A Researcher Conducted an Experiment in Which He Compared Two

Multiple Choice

A researcher conducted an experiment in which he compared two methods of teaching. If there were 10 people in Group 1 and 12 in Group 2, and a two-tailed t-test for two independent groups at alpha 0.05 was conducted, what t-value was needed to reject H₀?

A) 2.093
B) 2.086
C) 2.080
D) 2.074
E) None of these is correct.