那可能是你选择的变量不显著

恩，变量是有好多不显著，但是整个模型不显著（F值就不显著）是怎么回事呢

换变量，换模型。

Hello buddy,
take it easy first.

If you did everything right first,
that means there is no magnitude relationship between your variables.

In real life, it is not unusual.

You may talk with your instructor,
she/he may save you some time.

如果整个方程的检验都不显著就说明变量选择确实不合适，可以先对变量进行相关性分析看一看