In: Statistics and Probability
The mortgage department of a large bank is interested in the nature of loans of first-time borrowers. This information will be used to tailor their marketing strategy. They believe that the probability that the first-time borrowers take out smaller loans than other borrowers is 0.52. They perform a hypothesis test to determine if the probability is the same or different from 0.52. They sample 118 first-time borrowers and find 82 of these loans are smaller that the other borrowers. What is the test statistics to test the null hypothesis H0: p = 0.52 against the alternative hypothesis Ha: p ≠ 0.52?