15) National Bearing manufactures bearing at plants located in Portland Oregon, TX & FL. TO measure employees knowledge of Total Quality Management(TQM), six employees were randomly selected each plant and tested. The test scores for these employees are given in DATA. Mangers want to know if, on average, knowledge of TQM is equal across the 3 plants. Test equality of mean scores at x=.05

DATA:

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

Choose the answers that are correct

A)F value of 9

B)F value of 1.326

C)F value of 6.349

D)F value of 3.419