问题
单项选择题
有关假设检验，下列说法正确的是
A．检验假设针对总体，而不是样本
B．进行假设检验时，既可只写出H0或H1，也可同时写出H0和H1
C．H0为对立假设
D．H0的内容反映了检验的单双侧
E．都需先计算出检验统计量后再获得P值
答案
参考答案：A
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有关假设检验，下列说法正确的是
A．检验假设针对总体，而不是样本
B．进行假设检验时，既可只写出H0或H1，也可同时写出H0和H1
C．H0为对立假设
D．H0的内容反映了检验的单双侧
E．都需先计算出检验统计量后再获得P值
参考答案：A
| 阅读理解。 | ||||||||||||||||||||||||||
( ) 1. Mollie plays chess, but Simon doesn't play chess. ( ) 2. Jack doesn't play TV games, Simon doesn't play TV games, either (也). ( ) 3. Simon watches TV. Mollie watches TV, too. ( ) 4. Jack doesn't watch TV. Mollie doesn't watch TV, either. ( ) 5. Mollie doesn't sleep a lot. Jack doesn't sleep a lot, either. |