Question

Fair Isaac, the company that developed the credit score model used by most lenders today, would like to examine the relationship between the age and credit score of an individual. The following table shows the credit scores and ages of 10 randomly selected people. These data can also be found in the Excel file Fair Issac. xlsx.
a. Calculate the Spearman rank order correlation coefficient.
b. Using α = 0.05, perform a hypothesis test to determine if the population rank correlation coefficient is different than zero.


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  • CreatedJuly 29, 2015
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