A social scientist would like to analyze the relationship between educational attainment (in years of higher education) and annual salary (in $1,000s). He collects data on 20 individuals. A portion of the data is as follows: Salary Education 40 53 38 Click here for the Excel Data File a. Find the sample regression equation for the model: Salary = 6g + 6, Education + E. (Round your answers to 2 decimal places.) Predicted Salary = + Educationb. Interpret the coefficient for Education. O As Education increases by 1 year, an individual's annual salary is predicted to increase by $10,850. O As Education increases by 1 year, an individual's annual salary is predicted to increase by $8,590. O As Education increases by 1 year, an individual's annual salary is predicted to decrease by $10,850. O As Education increases by 1 year, an individual's annual salary is predicted to decrease by $8,590. c. What is the predicted salary (in $1,000s) for an individual who completed 7 years of higher education? (Do not round intermediate calculations. Round your final answer to nearest whole number.) Salary (in $1,000s)