A Personal Development Seminar Was Attended by 190 Person with Low

Essay

A personal development seminar was attended by 190 person with low self-esteem and 202 with medium self-esteem. At the conclusion of the seminar, the motivational speaker asked participants whether their self-esteem improved or not. The organizers claim that both groups are not equally benefited by attending the seminar.
Confirm that these data establish a difference in the proportions who did not benefit by attending the seminar using:
A) The X² test with level $\alpha$ =0.01.
B) The Z test with level $\alpha$ =0.01.