Two well-known aviation training schools are being compared using random samples of their graduates. It is found that 70 of 140 graduates of Fly-More Academy passed their FAA exams on the first try, compared with 104 of 260 graduates of Blue Yonder Institute. In a right-tailed test, the p-value is .0275, so at α = .025 we should:
A)reject the hypothesis of equal proportions.
B)not reject the hypothesis of equal proportions.
C)change the α to .05 to get a rejection.

Question

Quizplus · Accepted Answer

The p-value of 0.0275 is less than the significance level of 0.025, so we reject the null hypothesis of equal proportions and conclude that the proportion of graduates passing the FAA exam on the first try is significantly different between the two schools. There is no need to change the significance level to 0.05 as it would only increase the chance of a type I error.

Two Well-Known Aviation Training Schools Are Being Compared Using Random