There are 4 questions for this problem.) In a certain bank, the historical default rate on all short-term loans is 5.2 percent. In a recent random sample of 300 short-term loans, there were 9 defaults. The bank officer wishes to determine if there is sufficient evidence that the short-term loan defaults rate is below the historical default rate at the 0.05 level of significance. What is the computed value of the test statistic?