子航 · 2022年06月21日
NO.PZ2018062016000139
问题如下：
If the hypothesis that the variance of a single population is 17,which test statistic is most accurate to be used?
选项：
A.t-statistic.
B.χ2 statistic.
C.F-statistic.
解释：
B is correct. If we are testing hypothesis about the value of the variance, single population, we make use of a chi-square test statistic. It should be noted that the F-tsst is one of the tests concerning differences between the variances of two populations.
如题
NO.PZ2018062016000139 问题如下 If the hypothesis ththe varianof a single population is 17,whitest statistic is most accurate to use A.t-statisti B.χ2 statisti C.F-statisti B is correct. If we are testing hypothesis about the value of the variance, single population, we make use of a chi-square test statistiIt shoulnoteththe F-tsst is one of the tests concerning fferences between the variances of two populations. X平方test是否就是chi-square test？
NO.PZ2018062016000139问题如下If the hypothesis ththe varianof a single population is 17,whitest statistic is most accurate to use A.t-statisti B.χ2 statisti C.F-statisti B is correct. If we are testing hypothesis about the value of the variance, single population, we make use of a chi-square test statistiIt shoulnoteththe F-tsst is one of the tests concerning fferences between the variances of two populations.F检验是检测相关性p和r的哪个检验对吗
NO.PZ2018062016000139 χ2 statistiF-statisti B is correct. If we are testing hypothesis about the value of the variance, single population, we make use of a chi-square test statistiIt shoulnoteththe F-tsst is one of the tests concerning fferences between the variances of two populations. 总体方差已知不是用Z分布吗
请教一下老师，习题里面有大量关于判断使用哪种检验方法的题目，这一块到底是不是考试重点？
