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. 2012 Jan 15;77:432–443. doi: 10.1016/j.gca.2011.10.039

Table 2.

The output of coefficients and the associated summary for: (a) a simple linear regression between log DSr and log R; and (b) a multiple linear regression between log DSr and log R + ionic strength (I).

Coefficients Standard error t stat p-value Lower 95% Upper 95%
(a)
Intercept −1.571 0.083 −19.026 5.55e−16 −1.741 −1.400
log R 0.176 0.025 6.934 3.60e−7 0.123 0.228
Summary The regression equation: log DSr = (−1.571 ± 0.171) + (0.176 ± 0.053) · log R
Residual standard error: 0.08288 on 24 degrees of freedom
r2: 0.667, adjusted r2: 0.653
F-statistic: 48.08 on 1 and 24 DF, p-value: 3.6e−7



(b)
Intercept −1.566 0.066 −23.832 <2e−16 −1.702 −1.430
log R 0.186 0.020 9.223 3.44e−9 0.146 0.231
I −0.170 0.044 −3.859 7.97e−4 −0.261 −0.079
Summary The regression equation: log DSr = (−1.566 ± 0.136) + (0.186 ± 0.043) · log R − (0.170 ± 0.091) · I
Residual standard error: 0.06596 on 23 degrees of freedom
r2: 0.798, adjusted r2: 0.780
F-statistic: 45.4 on 2 and 23 DF, p-value: 1.033e−8