The Majoring in Money study by Sallie Mae from December 2015 showed that most college students manage their credit cards in a reasonable way. It showed that almost two-thirds of students pay their credit card balance in full every month and 26% of students who own credit cards make partial payments that exceed the minimum amount due. You are curious to find out if credit card payment behavior of students has changed since 2015 and collect data from a random sample of 380 students. You find that 68 students are making partial payments on their credit cards that exceed the minimum amount due. Using a = 0.05, complete parts a and b below. a. Does this sample provide support for the hypothesis that the proportion of students who make partial payments that exceed the minimum amount has decreased since 2015? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: p= 0.26 O B. Ho: p 2 0.26 H1: p# 0.26 H1: p 0.26 H, : p > 0.26 H1: ps0.26 Determine the critical value of the test statistic. Za =0 (Type an integer or decimal rounded to two decimal places as needed.) Calculate the test statistic. Zp = (Type an integer or decimal rounded to two decimal places as needed.) Determine the conclusion. Choose the correct answer below. O A. Reject Ho. There is not sufficient evidence to conclude that the proportion of students who make partial payments that exceed the minimum amount has decreased since 2015. O B. Do not reject Ho. There is sufficient evidence to conclude that the proportion of students who make partial payments that exceed the minimum amount has decreased since 2015. O C. Do not reject Ho. There is not sufficient evidence to conclude that the proportion of students who make partial payments that exceed the minimum amount has decreased since 2015. O D. Reject Ho. There is sufficient evidence to conclude that the proportion of students who make partial payments that exceed the minimum amount has decreased since 2015. b. Determine the p-value for this test. p-value = (Type an integer or decimal rounded to four decimal places as needed.)