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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 : β1 = 0 and interpret your result.
Specialization
The process of focusing effort and resources on a limited number of activities to increase efficiency and productivity.
Quantity Demanded
Refers to the total amount of a good or service that consumers are willing and able to purchase at a specific price level, holding all other factors constant.
Quantity Supplied
The total amount of a product that producers are willing to sell at a given price within a specific time frame.
Export
The act of sending goods or services from one country to another country for sale or trade.
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