圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/01-64.jpg
更新1:
http://i707.photobucket.com/albums/ww74/stevieg90/01-64.jpg
Statistic MC
2009-10-07 5:39 am
As follows:
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/01-64.jpg
圖片參考：http://i707.photobucket.com/albums/ww74/stevieg90/01-64.jpg
回答 (1)
2009-10-09 4:19 am
✔ 最佳答案
The test statistic follows normal distribution and we want to test if the two means are equal. So for -1.21, the p-value is2P(Z>1.21)=2*0.1131=0.2262 (B)
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091006000015KK08209