7

60

1

5

0.6

99.75

8

60

2

3

0.8

99.38

9

60

3

4

0.4

76.71

X₁

265.31

265.58

247.99

230.33

X₂

266.25

284.02

273.56

279.38

X₃

275.84

257.80

285.85

297.69

${\overline{X}}_1$

88.44

88.53

82.66

76.78

${\overline{X}}_2$

88.75

94.67

91.19

93.13

${\overline{X}}_3$

91.95

85.93

95.28

99.23

R

10.53

26.22

37.86

67.37

优水平

A₃B₂C₃D₃