National Bearings manufacturers bearings at plants located in Portland Oregon, Houston Texas, and Jacksonville Florida. To measure employee knowledge of Total Quality Management (TQM), six employees were randomly selected at each plant and tested. The test scores for these employees are given in DATA. Managers want to know if, on average, knowledge of TQM is equal across the 3 plants. Test equality of mean scores at alpha= 0.05

Question 15 (4 points) National Bearings manufactures bearings at plants located in Portland Oregon, Houston Texas, and Jacksonville Florida. To measure employee knowledge of Total Quality Management (TOM), six employees were randomly selected at each plant and tested. The test scores for these employees are given in DATA. Managers want to know if, on average, knowledge of TOM is equal across the 3 plants. Test equality of mean scores at a = 0.05. The F value of 3.419 is the F critical value of 3.682, therefore reject the equality of means. Knowledge of TOM is not equal across the 3 plants. The F value of 1.326 is the F critical value of 3.682, therefore reject the equality of means. Knowledge of TOM is not equal across the 3 plants. Hide hint for Question 15 What statistical procedure is used to test equality of three population means?