Hello, I have created a multiple linear regression fit (using least squares) for a project. The regression has two independent variables, rainfall and time, and fits these to groundwater level. The regression was calculated automatically in Excel. I have been asked to report on the P-value and F-statistic for this regression (both generated automatically by program). I have read some good explanations of P-value, but cannot find any simple explanation of the F-test or F-statistic. Can anyone provide, or recommend a simple explanation?