‘N TONG SO (g/l) NGAY 5’
The ANOVA Procedure
Class Level Information
Class
Levels Values
pH
4 5 6 7 8
Number of Observations Read 8
Number of Observations Used 8
‘N TONG SO (g/l) NGAY 5’
The ANOVA Procedure
Dependent Variable: Nts
Source
DF Sum of Squares Mean Square F Value Pr > F
Model
3
3.82195437
1.27398479
60.62 0.0009
Error
4
0.08407050
0.02101762
Corrected Total
7
3.90602487
R-Square
Coeff Var Root MSE Nts Mean
0.978477 3.218707
0.144975 4.504125
Source DF
Anova SS Mean Square F Value Pr > F
pH
3 3.82195437
1.27398479
60.62 0.0009
‘N TONG SO (g/l) NGAY 5’
The ANOVA Procedure
t Tests (LSD) for Nts
Note: This test controls the Type I comparisonwise error rate, not the experimentwise error rate.
Alpha
0.01
Error Degrees of Freedom
4
Error Mean Square
0.021018
Critical Value of t
4.60409
Least Significant
Difference
0.6675
Means with the same letter
are not significantly different.
t Grouping
Mean N pH
A
5.5915 2 6
Source DF
Anova SS Mean Square F Value Pr > F
pH
3 10.42755900
3.47585300
148.37 0.0001
‘N formol (g/l) NGAY 9’
The ANOVA Procedure
t Tests (LSD) for Nformol
Note: This test controls the Type I comparisonwise error rate, not the experimentwise error rate.
Alpha
0.01
Error Degrees of Freedom
4
Error Mean Square
0.023427
Critical Value of t
4.60409
Least Significant Difference
0.2999
Means with the same letter
are not significantly different.
t Grouping
Mean N pH
A
6.0850 2 6
A
5.7075 2 7
A
5.6000 2 8
B
2.8350 2 5
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