问题
单项选择题 B1型题
甲地区20名15岁男孩与乙地地区20名15岁男孩身高均数之差的检验为（）
A.样本均数与总体均数的t检验
B.μ检验
C.成组t检验
D.配对t检验
E.以上均不是
答案
参考答案：C
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甲地区20名15岁男孩与乙地地区20名15岁男孩身高均数之差的检验为（）
A.样本均数与总体均数的t检验
B.μ检验
C.成组t检验
D.配对t检验
E.以上均不是
参考答案：C
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