作者ireland707 (koala)
看板Grad-ProbAsk
标题[问题] 假设检定的设定
时间Tue Mar 17 01:43:12 2009
这题是我在写中央考古题看到的,
A local eat-in pizza retaurant want to investigatethe possibility
of starting to deliver pizzas. the owner of the store has determined
that home delivery willbe sucessful if the averag time spent on the
deliveries does not exceed 26 minutes. The owner has randomly selected
17 customers and has deliver pizzas to their homes.Whatare the hypotheses
the owner should test to show that pizza delivery will not be sucessful?
(1)H0:u=26 (2)H0:u=26 (3)H0:u<26 (4)H0:u=26
H1:u>26 H1:u≠26 H1:u=26 H1:u<26
我在写的时候,因为它最後一句说的是要检验它是不成功的
所以我选的是1,因为只要可以拒绝掉H0,也就是u会大於26
也就是不成功的,但是我看高点的统计详解,写的是第4个答案
到底哪一个才是正确答案呢?
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1F:推 MousePads:其实我也觉得是1,因为想要验证的放H1,不然你可以看看 03/17 09:44
2F:→ MousePads:其他家出的解答看有没有不同的解释 03/17 09:45
3F:推 cutebodlol:我会写1 因为不超过26包含等号放在h0 03/17 09:59