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Timeline for Exercise of Hypothesis Testing

Current License: CC BY-SA 3.0

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Aug 10, 2013 at 14:59 answer added Justin Bozonier timeline score: 1
Aug 10, 2013 at 13:48 comment added ABC @JustinBozonier A two sided test, statistic $z=2.42$. $p-$value$=2*0,0078$. Can you please explain why did we multiply $2$ instead of dividing?
Aug 10, 2013 at 13:41 comment added Justin Bozonier For a two sided test I believe you just use alpha/2 as alpha.
Aug 10, 2013 at 13:28 comment added ABC @COOLSerdash Can you please give me reference on one-sided test and two-sided test. My main problem is to compute the value based on one-sided test and two-sided test.
S Aug 10, 2013 at 12:59 history suggested QuantIbex CC BY-SA 3.0
Improved formatting and wording
Aug 10, 2013 at 12:57 comment added COOLSerdash If the population standard deviation is known, then you can use a $z$-test. As far as I understand your setup, you assume to know the population standard deviation to be $500$. If you estimate the population standard deviation by the sample standard deviation, a $t$-test is normally used. In large samples, the difference between the $z$-test and $t$-test are negligible. The critical $t$ value on the linked page is the $0.95$ quantile of the $t$-distribution with $34$ degrees of freedom. The $0.95$ quantile of the standard normal is $1.644$, not $1.96$ (because you have a one-sided test).
Aug 10, 2013 at 12:55 comment added QuantIbex The test is one-sided, you need to check the rejection region of your approach.
Aug 10, 2013 at 12:48 review Suggested edits
S Aug 10, 2013 at 12:59
Aug 10, 2013 at 12:39 history asked ABC CC BY-SA 3.0