Acredlt score is used by credit agencies (such as mortgage companies and banks] to assess the creditworthiness of individuals. ILl'alues range from 300 to 850, ' with a credit score over ?00 considered to be a quality credit risk. According to a survey, the mean credit score is T0913. Acredit analyst wondered whether highincome individuals [incomes in excess of $100,000 per year} had higher credit scores. He obtained a random sample of 3? highincome individuals and found the sample mean credit score to be 729.? with a standard deviation oi 80.9. Conduct the appropriate test to determine if highincome individuals have higher credit scores at the or: 0.05 level of signicance. State the null and alternative hypotheses. HD:p Yr H1:p Yr (Type integers or decimals. Do not round.)