hypothesis testing

數學神童

In a survey on the quality of service provided by a bank,12 out of 150 customers think that the service is unsatisfactory while the other 138 customers think otherwise.
Test the hypothesis that the proportion of customers who think that the service is unsatisfactory is 0.10
i)by using a 99% confidence interval
ii)by using out a significance test at the 1% significance level.
Comment on the methods i) and ii) used in the test of the hypothesis.

鸭王之王

和之前的方法一样+peaceboy兄的方法。。。

數學神童

‘之前的方法’？？？？在哪里？

鸭王之王

这里

數學神童

请问我们要怎样test hypothesis by using 99% confidence interval?如果只是找confidence interval的话我会做。

鸭王之王

请问我们要怎样test hypothesis by using 99% confidence interval?如果只是找confidence interval的话我会 ...
數學神童 发表于 4-11-2010 12:24 AM

看expected mean有没有在range里面？我的看法。
其他人有更好的例子吗？

变态小红帽

这个是business year 1 统计学的问题吧 。我刚考玩，但忘记了 ，我记得我会做的。。。