A random sample is selected from a normal population with a mean of 30....

Mathematics
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and standard deviation of 8. After treatment is administered to the individuals in the sample the sample mean is found to be 33.  For a 2-tail test a=0.05 the critical region consists of z-scores beyond:

Nov 21st, 2014

Z scores beyond | 1.96 |  will constitute the critical region

i. e if z < -1.96 or if z> 1.96, we reject the null hypothesis

Nov 21st, 2014

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Nov 21st, 2014
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Nov 21st, 2014
Dec 10th, 2016
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