With the use of the shrinked-map principle, we obtain a more general condition of the stability in cobweb model, where the usually cited linear hypothesis is canceled.
针对更一般的情形，利用压缩映象原理，给出了蛛网模型的稳定性条件，取消了通常的线性假设，同时提供了“蛛网”的一种简洁的几何描述。
If that probability is low, then you can reject the null hypothesis that the mean is the best predictor and, correspondingly, gain confidence that a simple linear model offers a good fit for the data.
如果概率很低，那就可以不采用平均值是最佳预测值这一无效假设，并且相应地可以确信简单线性模型是与数据良好吻合的。
In a research context, the alternative hypothesis of a linear model needs to be established by theoretical and statistical arguments.
在研究环境中，需要通过理论参数和统计参数来建立线性模型备择假设。
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