[問題] 相依母體或兩獨立母體判斷
我想請教的是政大財管所97年第二題
大意是某店想檢定使用折價券和貼海報, 對增加銷售量的影響,
便隨機抽了 50對 很類似的店, 分別使用兩種方法營業
其中 28對 中有使用折價券的銷售額較另一家(貼海報)高
我的問題是 這是兩獨立伯努力母體 (H0 : p1 - p2 <= 0 檢定
H1 : p1 - p2 > 0 )
還是成對抽取 D = X - Y 再對單一伯努力作檢定(H0 : p <= 0.5
H1 : p > 0.5 )呢
原題 : ... Before the promotion , their market research group matches 50
pair of stores. Each has two with similar volume and customer
demographics. The store in a pair that uses coupons and posters
is randomly chosen ...
(1) The increase was higher for 28 stores using coupons and 22 stores
using the posters. Is this strong evidence to support the conpon
approach ? Make a ddcision using a 0.05 significance level.
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※ 編輯: darkskyioi 來自: 218.160.225.116 (01/11 21:10)
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