tails: using to check if the regression formula and parameters are statistically significant.

H_{0}: ln(odds) = b_{0} | |

H_{1}: ln(odds) = b_{0}+b_{1}X_{1}+...+b_{p}X_{p} |

χ^{2} = 2(LL_{1}-LL_{0})

**Header**: You may change groups' name to the real names.**Data**: When entering data, press Enter after each value.

You may copy data from Excel, Google sheets or any tool that separate data with **Tab** and **Line Feed**.

Copy the data, **one block of consecutive columns includes the header**, and paste below.

Y must be the right columns. . click to see example:

After the calculation, the tool will copy the data to the columns view for a better flexibility

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