An Experimenter Hypothesizes That Biology Majors Score Higher Than Literature

Multiple Choice

An experimenter hypothesizes that biology majors score higher than literature majors on an intelligence test.If the mean score for biology majors was 18.8 and the mean score for literature majors was 21.3,and the S_difference was 0.9,the t score was

A) t = (18.8 - 21.3) / 0.9² = -3.09
B) t = (18.8 - 21.3) / 0.9 = -2.78
C) t = (18.8 - 21.3) (0.9) = -2.25
D) t = (18.8 - 21.3) / [(2) (0.9) ] = -1.39