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 the data table below.  Managers want to know if, on average, knowledge of TQM is equal across the 3 plants. Test equality of mean scores at α = 0.05. Ovservation Portland Houston Jacksonville 1 85 71 69 2 75 75 74 3 82 73 72 4 76 74 79 5 71 69 85 6 85 82 77

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