View Full Version : question on 2 tailed Z test
02-24-2006, 01:37 PM
If you performed a 2 tailed z test with alpha= 0.05, the null hypothesis will be rejected if the computed value of the z stats is higher than ______ and lower than ______.
Would it be 1.96 and -1.96???
02-24-2006, 01:40 PM
Yes, splitting the .05 between the two tails will create two critical regions, each containing .025 of the whole area, 1.96 standard errors away from the mean.
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