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【单选题】

若否定原假设,则( )。

A.
犯α错误
B.
犯β错误
C.
犯α错误或不犯错
D.
犯β错误或不犯错
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题目标签:假设原假设否定
参考答案:
参考解析:
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【单选题】How exactly, does science work How do scientists go about doing science Ordinarily we think science proceeds in a straight-forward way. Ideally scientists make observations, formulate hypotheses (假设),...

A.
The research methods used by scientists.
B.
Observation and human perception variation.
C.
The relation between hypothesis and observation.
D.
The human perceptual mechanism.

【单选题】检验假设H0应为

A.
μ处理1=μ处理2=μ处理3
B.
μ组1=μ组2=…=μ组10
C.
π处理1=π处理2=π处理3
D.
π组1=π组2=…=π组10
E.

【单选题】卡方拟合检验的原假设和备择假设为( )。

A.
\( H_0 :\mu =\mu _0 ,\quad H_1 :\mu \ne \mu _0 \)(\( \mu \) 是总体均值)
B.
\( H_0 :\sigma ^2=\sigma _0^2 ,\quad H_1 :\sigma ^2\ne \sigma _0^2 \)(\( \sigma^2 \) 是总体方差)
C.
\( H_0 :X\sim \left( {{\begin{array}{*{20}c} {a_1 } & {a_2 } & \cdots & {a_m } \\ {p_1 } & {p_2 } & \cdots & {p_m } \\ \end{array} }} \right),\quad H_1 :X\mbox{ 不服从 }\left( {{\begin{array}{*{20}c} {a_1 } & {a_2 } & \cdots & {a_m } \\ {p_1 } & {p_2 } & \cdots & {p_m } \\ \end{array} }} \right) \)
D.
\( H_0 :F(x)\le F_0 (x),\quad H_1 :F(x)>F_0 (x) \)