想找當σ unknown, sample size=106, significance level α=0.10時的critical value.
但係TABLE 的degree of freedom並沒有105這個數字,哪請問應該怎樣找?
(table:http://i707.photobucket.com/albums/ww74/stevieg90/01-65.jpg)
更新1:
但係如果只係提供左呢d table...咁係咪姐係冇方法搵~