抽樣分配係指下列何者的機率分配?

統計學1

Quiz
•
Business
•
1st - 5th Grade
•
Medium
許治文 許治文
Used 3+ times
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
樣本統計量
母體統計量
樣本參數
母體參數
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據中央極限定理,樣本平均數的抽樣分配,在什麼情況下趨近於常態分配
母體平均數夠大
已知樣本變異數
已知母體變異數
樣本數大於30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在做抽樣調查時,下列敘述何者正確
樣本大小與母體大小成正比
樣本大小與變異大小成反比
樣本大小與所能接受的誤差大小成正比
樣本大小與所需之信心水準高低成反比
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
所謂“簡單隨機樣本”必須符合以下哪些條件?
樣本觀察值必須符合常態分配的假設
樣本觀察值間必須是相互獨立
樣本觀察值必須來自不同機率分配
樣本數一定要多於30筆
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
機率抽樣方法中,「摸彩法」及「亂數法」是屬於以下何種抽樣?
系統隨機抽樣
集群抽樣
立意抽樣
簡單隨機抽樣
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若每個樣本被抽的機會相等,此抽樣方法稱為?
簡單隨機抽樣
分層隨機抽樣
叢式抽樣
系統抽樣
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