Use the data in WAGE2 to answer the following questions. (a) Find the highest lowest and...
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Use the data in WAGE2 to answer the following questions. (a) Find the highest lowest and standard deviation monthly earnings (wage). mean values of (b) Produce a scatter plot of monthly earnings (wage; on the vertical axis) and IQ score (IQ; on the horizontal axis). (c) Set up the population regression function in the stochastic form to represent the causal relationship between the two variables, assuming a linear relationship, with Bo being the intercept parameter and ß being the slope parameter. Indicate clearly the a priori expectations of the signs of the parameters and the assumptions of the stochastic term. (d) Estimate the regression model in (c), and report the sample regression function, showing the estimated parameters, standard errors of the parameter estimates, sample size and R-squared. (e) Interpret the parameter estimates and R-squared. (f) Predict the increase in monthly earnings if the IQ score increases by 20. (g) Suppose an employee has an IQ of 102 and a monthly earnings of $1,000. What is the amount of over prediction or under prediction of her monthly earnings, that is, the residual amount of monthly earnings of this employee according to the sample regression function? Draw a diagram to illustrate this situation, with the sample regression function, sample observation point of the employee, the predicted value of the employee's monthly earnings, and the corresponding residual monthly earnings. Use the data in WAGE2 to answer the following questions. (a) Find the highest lowest and standard deviation monthly earnings (wage). mean values of (b) Produce a scatter plot of monthly earnings (wage; on the vertical axis) and IQ score (IQ; on the horizontal axis). (c) Set up the population regression function in the stochastic form to represent the causal relationship between the two variables, assuming a linear relationship, with Bo being the intercept parameter and ß being the slope parameter. Indicate clearly the a priori expectations of the signs of the parameters and the assumptions of the stochastic term. (d) Estimate the regression model in (c), and report the sample regression function, showing the estimated parameters, standard errors of the parameter estimates, sample size and R-squared. (e) Interpret the parameter estimates and R-squared. (f) Predict the increase in monthly earnings if the IQ score increases by 20. (g) Suppose an employee has an IQ of 102 and a monthly earnings of $1,000. What is the amount of over prediction or under prediction of her monthly earnings, that is, the residual amount of monthly earnings of this employee according to the sample regression function? Draw a diagram to illustrate this situation, with the sample regression function, sample observation point of the employee, the predicted value of the employee's monthly earnings, and the corresponding residual monthly earnings.
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a Find the highest lowest and standard deviation monthly earnings wage values of The highest monthly earnings value is 4167 The lowest monthly earning... View the full answer
Related Book For
Bank Management and Financial Services
ISBN: 978-0078034671
9th edition
Authors: Peter Rose, Sylvia Hudgins
Posted Date:
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