58 
Table D-15. Tributaries in Group 6. 
Tributary Group 
Tributaries 
6 
Lower Chester Rivers 
Upper Chester Rivers 
Table D-16. ANCOVA for tributaries in Group 6. 
Source 
DF 
Sum of 
Squares 
Mean Square 
F Value 
p-value 
Model 
7 
319.82 
45.69 
69.54 
0.0000 
tributary 
1 
0.01 
0.01 
0.01 
0.9165 
rl_5turb 
1 
82.88 
82.88 
126.15 
0.0000 
rl_5turb*tributary 
1 
0.75 
0.75 
1.15 
0.2854 
xCHLA 
1 
16.64 
16.64 
25.33 
0.0000 
xCHLA*tributary 
1 
2.02 
2.02 
3.07 
0.0813 
xlnSALINITY 
1 
0.66 
0.66 
1.00 
0.3175 
x!nSALINIT*tributary 1 
0.00 
0.00 
0.00 
0.9945 
Error 
188 
123.52 
0.66 
— 
— 
Corrected Total 
195 
443.35 
appendix d • Derivation of Regressions 
