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Homework Help Forum: Statistics
Posted by Kevin on Wednesday, October 21, 2009 at 6:53pm.
In hypothesis testing, if the population standard deviation is KNOWN, your graph should be labeled a T or Z line?
In hypothesis testing, if the population standard deviation is NOT KNOWN, your graph should be labeled a T or Z line?
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- Statistics - MathGuru, Thursday, October 22, 2009 at 9:16pm
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If population standard deviation is not known, usually a t-distribution is used.
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