= Test: POST UNIT 7 - TEST - Ch. 10 Question 10 of 13 This test: 13 point(s) possible This question: 1 point(s) possible Submit 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 701.7. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 42 high-income individuals and found the sample mean credit score to be 716.4 with a standard deviation of 82.9. Conduct the appropriate test to determine if high-income individuals have hig scores at the a = 0.05 level of significance State the null and alternative hypotheses. (Type integers or decimals. Do not round.) Identify the t-statistic. to =(Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. the null hypothesis. There | sufficient evidence to claim that the mean credit score of high-income individuals is Next Statcrunch 1:39 P O e EM X B 4/20/20 SAMSUNG