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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Suppose you are interested in determining the factors that influence the time required to prepare a tax return.You develop the model Y = β0 + β1X1 + β2X2 + β3
+ β4X3 + β5X4 + β6(X1 ∙ X4) + ε,where Y is the amount of time in minutes,X1 is the income of the individual (in thousands of dollars),X2 is the age of the individual,X3 is the number of people living in the household,and X4 is a dummy variable that takes the value 1 if the individual owns his or her own home.After interviewing 40 accountants,you obtained
= 17.2 + 0.38x1 + 1.04x2 - 0.04
+ 2.15x3 + 0.11x4 - 0.22(x1 ∙ x4),
= 5.3,
= 0.13,
= 0.33,
= 1.51,
= 4.7,
= 0.05,and
= 0.07.
-Test the hypothesis H0 : β5 = 0 and interpret your result.
General Butler
Benjamin Franklin Butler, a controversial Union general during the American Civil War, known for his strong enforcement of policies in the territories he commanded.
Runaway Slaves
Refers to slaves who escaped from their enslavers in search of freedom or to join abolitionist territories or movements.
Contraband
Goods that have been imported or exported illegally, not in accordance with laws and regulations.
Unintended Consequence
A result or effect that was not anticipated or intended, often occurring as a side effect of an action or decision.
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