AVamxxVhZBy6/ 16qBJKRyy8a / 0330]_153q2s Good credit: The Fair Isaac Corporation (FICO) credit score is used by banks and other lenders to determine whether someone is din a good credit risk. Scores range from 300 to 850, with a score of 720 or more indicating that a person is a very good credit risk. An economist wants to determine whether the mean FICO score is more than the cutoff of 720. She finds that a random sample of 90 people had a mean FICO score of 730 with a standard deviation of 91. Can the economist conclude that the mean FICO score is greater than 7207 Use the =0.05 level of significance and the critical value method. Part: 0 / 5 Part 1 of 5 (a) State the appropriate null and alternate hypotheses. 1: 14 = 720 H I