please explain me

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- Jul 23rd 2010, 11:21 PMsamileo31conf interval short question
please explain me

- Jul 24th 2010, 07:35 PMpickslides
1. The 3 ways to test a hypothesis is by finding the critical value, finding a p-value or finidng a cofidence interval. Is that what is meant by the question?

2. $\displaystyle 1-\alpha$

3. Construct an interval and you will see it is the middle.

4. When $\displaystyle \sigma$ is unknown

5. I think you need more information to determine the null and alternate hypothesis here. - Jul 24th 2010, 10:45 PMsamileo31
please 5th one also

- Jul 25th 2010, 03:02 AMmr fantastic
- Jul 25th 2010, 10:24 PMsamileo31
i have only this information about the Q5