tit P Chrome - Do Homework - Unit 4 Chapter 10 Homework Hypothesis Testing X VE mathxl.com/Student/PlayerHomework.aspx?homeworkid=607965998&questionld=11&flushed=false&cld=6666921¢erwin=yes MTH 245 (online) Statistics | : Fall 2021

tit P Chrome - Do Homework - Unit 4 Chapter 10 Homework Hypothesis Testing X VE mathxl.com/Student/PlayerHomework.aspx?homeworkid=607965998&questionld=11&flushed=false&cld=6666921&centerwin=yes MTH 245 (online) Statistics | : Fall 2021 Felicity Braxton & 12/02/21 11:18 AM Si Question 12, 10.3.17-T HW Score: 42.86%, 6 of 14 points Homework: Unit 4 ... Part 1 of 4 O Points: 0 of 1 Save 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 707.7. 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 45 high-income individuals and found the sample mean credit score to be 723.7 with a standard deviation of 84.7. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a= 0.05 level of significance. State the null and alternative hypotheses. Ho: H HE H (Type integers or decimals. Do not round.)