问题
单项选择题
When analyzing the value of a single normally distributed populations variance, the most appropriate test is a(n):()
A. chi-squared test.
B. paired comparison test.
C. F-test.
答案
参考答案:A
解析:
检验单个总体方差是否等于某个数值用开方检验。检验两个正态分布的总体方差是否相等用F检验。检验两个非独立总体的均值之差用配对检验。