A study was conducted to determine if a person\'s agreeability (whether they are

Question

A study was conducted to determine if a person's agreeability (whether they are generally an agreeable person or not) affects their income level. It also looked at the person's gender to see if it was a factor as well. The variables are shown below: Income: y annual income in dollars Agree: x1 agreeability level with higher scores indicating a person is more aggregable and lower scores indicating less agreeable Gender: x2- 1 if male, O if female Use the following information to answer the multiple regression questions. Printout C: Least Squares Linear Regression of Income Predictor VariablesCoefficient Std Error T P Constant 40977.1 Agree Gender x1x2 8788.81 4.66 0.0000 5479.362643.95 1.07 0.2409 54225.1 12988.7 4.17 0.0001 -8708.14 3934.83 -2.21 0.0293 6.047E+07 0.7626 Mean Square Error (MSE) 7700.00 Standard Deviation Adjusted R 0.7552 F1o ?F5 17 0 F2 4

Explanation / Answer

The correct option is t test:

Because the interaction effect of X1X2 is one of the independent variable and we need to use t test for

testing the significance of this variable.

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