Construct a scatter diagram for the data about productivity

Reference no: EM132772239

Question:

1. Construct a scatter diagram for the data about productivity and absenteeism then interpret the possible relationship that can be found.

2. Construct a scatter diagram for the data about productivity and training sessions then interpret the possible relationship that can be found.

3. Construct a simple regression model to predict the annual productivity by the variable Absenteeism. What is the interpretation that can be made based on the regression results?

4. Construct a simple regression model to predict the annual productivity by the variable Training Sessions. What is the interpretation that can be made based on the regression results?

5. Find r2 for the two regression models constructed earlier. Which factor explains the variable Productivity the most?
Calculate the prediction error for the annual productivity when the absenteeism value is equal to 11 and 63 days, based on the corresponding regression model constructed previously.

6. For the regression model of the annual productivity by the variable Absenteeism, draw the errors graph and check if the model respects the regression assumptions or not.

7. For the regression model of the annual productivity by the variable Training sessions, construct the ANOVA table for the regression model. Then perform the significance test for α = 0.05 and what conclusion can be drawn from the obtained results?

Reference no: EM132772239

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