After substituting the unstandardized coefficients from Table 1 into the multiple regression model, the linear prediction model for infiltration reduction is:The coefficient of each independent variable in model II is listed in Table 2.

3

Table 2

Step 5 . | (Constant) . | PT
. | DD^{2}
. | CCS^{2}
. | QAC
. | WPH^{2}
. |
---|---|---|---|---|---|---|

6.012 | 0.032 | −1.980 | −0.001 | 0.225 | 6.125 × 10^{−5} |

Step 5 . | (Constant) . | PT
. | DD^{2}
. | CCS^{2}
. | QAC
. | WPH^{2}
. |
---|---|---|---|---|---|---|

6.012 | 0.032 | −1.980 | −0.001 | 0.225 | 6.125 × 10^{−5} |

Dependent variable: *Y* = Ln.

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