One-side ANOVA

GRADE

N

Mean

Std. Deviation

Std. Error

95% Confidence Interval for Mean

Min

Max

Lower Bound

Upper Bound

group1

36

105.44

59.228

9.871

85.40

125.48

21.0

305.0

group2

33

92.48

81.554

14.196

63.56

121.40

6.0

444.0

group3

32

80.40

41.486

7.333

65.48

95.39

3.0

185.0

Total

101

93.28

63.213

6.290

80.80

105.76

3.0

444.0