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試卷名稱：110年 - 110 國立中央大學_碩士班招生考試_共同科目:統計學#105819
年份：110年
科目：研究所、轉學考(插大)◆統計學
1.Suppose we have a population that is normally distributed, and its standard deviation is unknown. We want to test the following hypotheses: H0:μ=12 vs Ha:μ≠12. If the value of the test statistic is -1.9 based on a sample of size 20, what type of test statistic is it and what is the corresponding p-value?
(A)z statistic, 0.0287;
(B)z statistic, 0.0574;
(C) t statistic, between 0.025 and 0.05;
(D) t statistic, between 0.05 and 0.10.