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Statıstıcs Iı Deneme Sınavı Sorusu #991671
Statıstıcs Iı Deneme Sınavı Sorusu #991671
Which of the following statements is false regarding the test statistic formula below, which is for two sample tests of means when their population variances are known?
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x1-x2 is the difference of the sample mean |
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The sampling distribution is standard normal distribution. |
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σ21, σ22 are known population variances |
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When any of the sample size is larger than 30, then sample variances could be used instead of population variances. |
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n1, n2 are the sizes of the sample of the two independent populations |
Yanıt Açıklaması:
In order to use sample variances instead of population variances, both of the sample sizes must be larger than 30. Thus statement in D is false.
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