Suppose Bank of America would like to investigate if the credit score and income level of...
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Suppose Bank of America would like to investigate if the credit score and income level of an individual are independent of one another. Bank of America selected a random sample of 400 adults and asked them to report their credit score range and their income range. The following contingency table presents these results. Credit Score More than Class Less than 650 650-750 750 Income < $50,000 26 30 24 $50,000 s Income < $100,000 63 53 44 $100,000 s Income < 40 30 30 $150,000 Income 2 $150,000 21 17 22 The test statistic for this sample is 7.051 10.576 1.766 3.320 Suppose Bank of America would like to investigate if the credit score and income level of an individual are independent of one another. Bank of America selected a random sample of 400 adults and asked them to report their credit score range and their income range. The following contingency table presents these results. Credit Score More than Class Less than 650 650-750 750 Income < $50,000 26 30 24 $50,000 s Income < $100,000 63 53 44 $100,000 s Income < 40 30 30 $150,000 Income 2 $150,000 21 17 22 The test statistic for this sample is 7.051 10.576 1.766 3.320
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