Q:Question:Credit scores are used by banks and other lenders to determine whether someone is a good credit risk. Scores range from 300 to 850, with a score of 730 or more indicating that a person is a good credit risk. An economist finds that a simple random sample of 164 people had a mean credit score of 748 with a standard deviation of 83. Can the economist conclude that the mean credit score is more than 730? Use the = 0.01 level.A:Answer:See a step by step answer