The practice of "phishing' or using the Internet to pilfer personal information, has become an increasing ooncem. Suppose a credit union instituted an extensive online security and education program in an effort to combat phishing. The credit union's managers believe that if more than 12% of their customers have cut back on their Internet banking transactions because of fears about phishing, they will be required to take more stringent action to lower this percentage. The credit union's information technology department analyzed 180 randomly selected accounts and determined that 26 had cut back on their Internet banking transactions. a. State the appropriate null and alternative hypotheses for this situation. b. Using a = 0.05 and the p-value approach, indicate whether the sample data support taking more stringent action. a. Identify the null and alternative hypotheses for this test. Let p be the population proportion of accounts that have cutback on their Internet banking transactions at this credit union. A. He: p 2 0.12 HA: p 0.12 C. H0: p>0.12 HA:pSO.12 D. Ho: p=0.12 HA:p#0.12 b. Perform the test using a normal approximation. Identify the test statistic. (Round to two decimal places as needed.)