National Bearings manufactures 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 or = 0.05. O The F value of 3.419 is < the F critical value of 3.682, therefore do not reject 2 ' o},5ewation Pomand Houston jacksonv'lne
equality of means. Knowledge of TQM is equal across the 3 plants. 3_ 1 85 71 54
4 2 75 75 59
E 3 82 73 57
O The F value of 1.326 is < the F critical value of 3.682, therefore do not reject i 4 76 74 74
equality of means. Knowledge of TQM is equal across the 3 plants. ;_ 2 g: g: :2 O The F value of 9 is > the F critical value of 3.682, therefore reject the equality of
means. Knowledge of TQM is not equal across the 3 plants. 0 The F value of 6.349 is > the F critical value of 3.682, therefore reject the
equality of means. Knowledge of TQM is not equal across the 3 plants.