神马作文网一道统计学题,A test of a null hypothesis gives a test statistic z=
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一道统计学题,
A test of a null hypothesis gives a test statistic z=-1.6
what is p-value if the alternative is Ha:u不等于u0?
A test of a null hypothesis gives a test statistic z=-1.6
what is p-value if the alternative is Ha:u不等于u0?
因为这道题的备择假设（alternative hypothesis）是u不等于u0,所以原假设（null hypothesis ）就是u=u0,这意味着你需要使用双侧检验.z=-1.6对应的双侧p-value为0.1096.你在Excel软件中输入NORMSDIST(-1.6)就可以得到计算结果0.054799292,由于这是单侧的结果,将它乘2就可以得到双侧的结果0.1096.
一道统计学题,A test of a null hypothesis gives a test statistic z=
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