San Diego State University Operations And Supply Chain Management Assignment Help - Model

Question - Twenty-three student teachers took part in an evaluation program designed to measure teacher
effectiveness and determine what factors are important. Eleven female instructors took part. The
respopnse measure was a quantitative evaluation made on the cooperating teacher. The independent
variables were scores on four standardized tests given to each instructor. The data were as follows:
ï‚· Use MINITAB to draw scatter plots for Y versus the independent variables. Provide hard
copies of these plots.
ï‚· Discuss any observations from these graphs.
ï‚· Use MINITAB to fit an appropriate multiple linear regression model. Discuss why you
think this is the most appropriate model.
ï‚· Present residual plots to determine w ...Read More hether the assumptions for the model were violated.
(Note: Check your text for the assumptions for a multiple linear regression model). To obtain
the residual plots you need to select the Graphs option in the Regression dialog box.
Y X1 X2 X3 X4
410 69 125 59.00 55.66
569 57 131 31.75 63.97
425 77 141 80.50 45.32
344 81 122 75.00 46.67
324 0 141 49.00 41.21
505 53 152 49.35 43.83
235 77 141 60.75 41.61
501 76 132 41.25 64.57
400 65 157 50.75 42.41
584 97 166 32.25 57.95
434 76 141 54.50 57.90 ...Read Less

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