The full-time student body of college is composed of 50% males and 50% females. Does random sample of students (30 male, 20 female) from introductory chemistry course show sufficient evidence to reject hypothesis that the proportion of male and of female students who take course is the same as that of entire student body? Use ?= 0.05
a. Solve using the p-value approach.
b. Solve using the classical approach.