A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals Values range from 300 to 850, with a credit score over 700' considered to be a quality credit risk. According to a survey. the mean credit score is 708 1 A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credt scores. He obtained a random sample of 4G high~income individuals and found the sample mean credit score to be 713 2 with a standard deviation of 84 6, Conduct the appropriate test to determine if high'income individuals have higher credit scores at the u = 0.01 level of signicance. ' a Click the icon to View the table of critical t-values' l Slate the null and altemative hypotheses. Fill in the correct answers below. k i l '1 H0111 D '2 Ht: \"ED (type integers or decimals Do not round) l l l l