题目：
抽样调查地方性甲状腺肿病区和非病区各25名16岁女学生身高发育情况，拟了解地方性甲状腺肿病区，和非病区16岁女学生身高发育是否不同，宜采用( )
A．两样本均数t检验
B．配对计量资料t检验
C．样本均数与总体均数t检验
D．四格表资料χ2检验
E．配对四格表资料χ2检验
答案：
参考答案：A
解析：此不能仅凭样本指标下结论，需要用假设检验的方法，由于比较指标是身高，属计量资料，调查设计是成组设计两样本比较，每组样本量为20较小，故选择两样本均数t检验。
抽样调查地方性甲状腺肿病区和非病区各25名16岁女学生身高发育情况，拟了解地方性甲状
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