Historically, the pass rate on the state bar exam for attorneys in a specific state has been 55.2%. Since giving the last exam, the state has replaced an old exam training program with a new one. Following the new training program, a random sample of 235 prospective attorneys was selected, and among this sample 52.8% passed the bar exam. Is there sufficient evidence to conclude that there is a change in the proportion or people passing the exam? Carry out a hypothesis test at a 7% significance level.
A. The value of the standardized test statistic: ?
B. The p-value is: ?