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dejiazheng · 2024年07月07日

significance of F=0为什么能得出显著性

* 问题详情,请 查看题干

NO.PZ202208300200000101

问题如下:

The most appropriate interpretation of the results reported in Exhibit 1 is that:

选项:

A.the F-statistic of the regression is not significant. B.predictions of defective assemblies per hour made using the regression have only about a 41% chance of being correct. C.variations in the independent variables explain approximately 41% of the variation in the defective assemblies per hour.

解释:

Solution C is correct. The R2 indicates that variations in the independent variables explain approximately 41% of the variation in the dependent variable. The F-statistic is highly significant. R2 does not inform us regarding the probability of a dependent variable prediction being correct.

A is incorrect. The F-test of the regression is highly significant.

B is incorrect. R2 does not inform us regarding the probability of a dependent variable prediction being correct.

F=0小于significance level,且落在接受域,为什么是显著呢?

1 个答案

品职助教_七七 · 2024年07月08日

嗨,从没放弃的小努力你好:


significance of F就是F检验的p-value。如p-value小于significance level,则拒绝原假设,也就是显著。


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虽然现在很辛苦,但努力过的感觉真的很好,加油!