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統計學3題..........謝謝

Jan 3rd 2014, 00:51

1.女性是否比男性容易手冰冷，針對45位男性(平均溫度34、標準差1.0)和60位女性(平均溫度32、標準差1.2)所做的測量結果如下：假設男性和女性的掌心溫度分配為常態。(提供SP值為1.11)
(1)在α=0.05下，檢定男性和女性的掌心溫度的平均溫度是否有差異?
(2)在α=0.01下，檢定男性和女性的掌心溫度是否有差異?

2.自四次大型考試的成績中各抽出100個成績得:
=68. =74. =70 =68, S1 =11, S2 = 12, S3=8, S4=10 試檢定
H0: μ1 =μ2 =μ3=μ4 （α=0.05）檢定統計量F多少？接受或拒絕H0
在卡方檢定中，自由度如何計算？
在列聯表中，自由度的意義為何？
在列聯表中，H0 是什麼？

3.問口服葯與注射葯有沒有成效？(2X2卡方檢定)
口服藥有效15、無效40
注射葯有效35、無效10

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