Mathematics, 01.05.2021 09:40, diamond2738
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 709.8. 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 30 high-income individuals and found the sample mean credit score to be 724.4 with a standard deviation of 80.8. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the α=0.05 level of significance. State the null and alternative hypotheses.
Answers: 2
Mathematics, 21.06.2019 17:00, anniekwilbourne
For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.
Answers: 3
A credit score is used by credit agencies (such as mortgage companies and banks) to assess the cre...
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