Suppose a bank would like to investigate if credit score and income level of an

Question

Suppose a bank would like to investigate if credit score and income level of an individual are independent of one another. The a random sample of 400 adults and asked them to report their credit score range and their income range. The contingency table below presents these results. How many degrees of freedom does the critical value have? Credit Score Income Less than $50,000 $50,000 to less than $100,000 $100,000 to less than $150,000 More than $150,000 Less than 650 26 63 40 21 650-750 53 17 More than 750 24 30 OA. 5 0B.3 O D. 6

Explanation / Answer

Solution : contingency table has 4 rows and three columns

Degree of freedom = (4-1)*(3-1) = 6

Answer :

D. 6

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