题目
The test statistic for an F-test of the equality of two sample variances is the:
选项
A.product of the two sample variances.
B.ratio of the two sample standard deviations.
C.product of the two sample standard deviations.
D.ratio of the two sample variances.
答案
D
解析
The test statistic for an F-test of the equality of two sample variances is the ratio of the two sample variances. 两个样本方差是否相等的F检验的检验统计量是两个样本方差的比率。