National Bearings manufactures bearing at plants 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 = 0.05. Ovservation 1 2, 3, 4, 5, 6 Portland 85, 75, 82, 76, 71, 85 Houston 71, 75, 73, 74, 69, 82 Jacksonville 69, 74, 72, 79, 85, 77