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Salary	Years	Education	Gender
1720.00 2400.00 1600.00 2900.00 1200.00 1000.00 2900.00 2400.00 1900.00 2200.00 1000.00 900.00 1250.00 950.00 2000.00 2000.00 1900.00 1000.00 1000.00 2800.00 2900.00 1550.00 1550.00 2200.00 1650.00 2200.00 900.00 1000.00 1220.00 2100.00 900.00 900.00 2000.00 2330.00 2400.00 900.00 1069.00 1400.00 1650.00 1200.00 3500.00 1750.00 4000.00 1800.00 4000.00 4600.00 1350.00	6.00 4.90 4.20 3.70 1.60 .30 1.00 1.80 6.80 1.20 .30 .20 .60 .50 .70 1.90 1.60 1.40 1.40 3.40 3.50 3.10 3.00 2.50 2.20 2.00 .50 .50 2.00 .50 .50 .20 .50 .60 .30 1.00 .50 .50 1.00 .30 13.50 11.00 6.40 7.20 6.10 5.80 5.10	2.00 1.00 2.00 3.00 1.00 1.00 3.00 3.00 1.00 3.00 1.00 1.00 1.00 1.00 3.00 3.00 1.00 1.00 1.00 3.00 3.00 1.00 1.00 3.00 1.00 3.00 1.00 2.00 1.00 3.00 1.00 1.00 3.00 3.00 3.00 1.00 1.00 1.00 1.00 1.00 4.00 3.00 3.00 1.00 3.00 4.00 3.00	.00 1.00 .00 .00 .00 .00 1.00 1.00 .00 1.00 .00 .00 .00 .00 1.00 1.00 1.00 .00 .00 .00 1.00 .00 .00 1.00 1.00 1.00 .00 .00 .00 1.00 .00 .00 1.00 1.00 1.00 1.00 .00 1.00 1.00 1.00 1.00 .00 1.00 .00 1.00 1.00 1.00

BigTex Services is undergoing scrutiny for a possible wage discrimination suit. The information above was collected. SALARY: monthly salary for each employee YEARS: years with the company EDUCAT: amount of education coded as 1 = high school degree 2 = some college 3 = college degree 4 = graduate degree GENDER; gender coded as 0 = female 1 = male

a) Write a complete first order interaction model relating average salary to years with the company, amount of education and gender. Let graduate degree and female represent the base levels for EDUCAT and GENDER, respectively. Make sure to define each variable in the model.

b) In terms of the what is the average salary of the female employees with a high school degree and 5 years of service. Show your work.

c) In terms of the what is the difference between the average salary of male and female employees. Show your work.

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