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Exhibit 17

question 111

Multiple Choice

Exhibit 17.4.A researcher wants to examine how the remaining balance on $100,000 loans taken 10-20 years ago depends on whether the loan was a prime or sub-prime loan.He collected a sample of 25 prime loans and 25 sub-prime loans and records the data in the following variables: Balance = the remaining amount of loan to be paid off (in dollars) ,
Time = the time elapsed from taking the loan,
Prime = a dummy variable assuming 1 for prime loans,and 0 for sub-prime loans.
The regression results obtained for the models:
Model A: Balance = β0 + β1Prime + ε
Model B: Balance = β0 + β1Time + β2Prime + β3Time × Prime + ε
Model C: Balance = β0 + β1Prime + β2Time × Prime + ε,
Are summarized below. Exhibit 17.4.A researcher wants to examine how the remaining balance on $100,000 loans taken 10-20 years ago depends on whether the loan was a prime or sub-prime loan.He collected a sample of 25 prime loans and 25 sub-prime loans and records the data in the following variables: Balance = the remaining amount of loan to be paid off (in dollars) , Time = the time elapsed from taking the loan, Prime = a dummy variable assuming 1 for prime loans,and 0 for sub-prime loans. The regression results obtained for the models: Model A: Balance = β<sub>0</sub> + β<sub>1</sub>Prime + ε Model B: Balance = β<sub>0</sub> + β<sub>1</sub>Time + β<sub>2</sub>Prime + β<sub>3</sub>Time × Prime + ε Model C: Balance = β<sub>0</sub> + β<sub>1</sub>Prime + β<sub>2</sub>Time × Prime + ε, Are summarized below.   Note.The values of relevant test statistics are shown in parentheses below the estimated coefficients. Refer to Exhibit 17.4.Using Model B,what is the alternative hypothesis for testing the significance of Time? A) H<sub>A</sub>: β<sub>1</sub> = 0 B) H<sub>A</sub>: β<sub>1</sub> = 0 and β<sub>3</sub> = 0 C) H<sub>A</sub>: β<sub>1</sub> ≠ 0 D) H<sub>A</sub>: β<sub>1</sub> ≠ 0 or β<sub>3</sub> ≠ 0 Note.The values of relevant test statistics are shown in parentheses below the estimated coefficients.
Refer to Exhibit 17.4.Using Model B,what is the alternative hypothesis for testing the significance of Time?


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