Mathematics, 27.04.2021 15:10 Yomarie1104
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 . 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 high-income individuals and found the sample mean credit score to be with a standard deviation of . Conduct the appropriate test to determine if high-income individuals have higher credit scores at the level of significance.
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