Table 5.
Regression parameters for contaminated samples.
| Slopea | Interceptb | ||||||
|---|---|---|---|---|---|---|---|
| Equation | R2 | F(1, 29) | p | F(1, 30) | p | ||
| +1.5 ml E. coli | Chl a + b | y = 0.00758(±0.00022) x + 0.00623(±0.00198) | 0.998 | 2.526 | 0.123 | 16.156 | <0.001 |
| Chl a | y = 0.01092(±0.00041) x + 0.00723(±0.00257) | 0.996 | 3.542 | 0.070 | 21.394 | <0.001 | |
| Chl b | y = 0.02472(±0.00025) x + 0.00418(±0.00071) | 1.000 | 0.623 | 0.436 | 5.301 | 0.028 | |
| +0.325 ml E. coli | Chl a + b | y = 0.00712(±0.00019) x + 0.00488(±0.00132) | 0.998 | 0.142 | 0.709 | 4.704 | 0.038 |
| Chl a | y = 0.01023(±0.00029) x + 0.00500(±0.00139) | 0.997 | 0.395 | 0.535 | 6.233 | 0.018 | |
| Chl b | y = 0.02336(±0.00056) x + 0.00463(±0.00118) | 0.998 | 0.022 | 0.882 | 1.894 | 0.179 | |
a
p-values indicating whether the slope of the fitted line is significantly different from that of the control dataset in each case.
b
p-values indicating whether the intercept of the fitted line is significantly different from zero and from the control dataset in each case.