The Thematic Apperception Test presents participants with ambiguous pictures and asks them to tell a story about them. These stories can be scored in any number of ways. Werner, Stabenau, and Pollin (1970) asked mothers of 20 Normal and 20 Schizophrenic children to complete the TAT and then scored for the number of stories (out of 10) that exhibited a positive parent-child relationship. The data follow:

Normal 8 4 6 3 1 4 4 6 4 2 Schizophrenic 2 1 1 3 2 7 2 1 3 1 Normal 2 1 1 4 3 3 2 6 3 4 Schizophrenic 0 2 4 2 3 3 0 1 2 2

(a) What would you assume to be the experimental hypothesis behind this study?

(b) What would you conclude with respect to that hypothesis.