At Huge University, a sample of 200 business school seniors showed that 26 planned to pursue an MBA degree, compared with 120 of 800 arts and sciences seniors. We want to know if the proportion is higher in the arts and sciences group. The p-value for a left-tailed test is approximately:
A).38
B).48
C).24
D).51

Question

Quizplus · Accepted Answer

The p-value for a left-tailed test is approximately 0.24. This is because the proportion of arts and sciences seniors who plan to pursue an MBA degree is 0.15 (120/800), which is greater than the proportion of business school seniors who plan to pursue an MBA degree (0.13, or 26/200).

At Huge University, a Sample of 200 Business School Seniors