Asked by Kevin
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?
In hypothesis testing, if the population standard deviation is NOT KNOWN, your graph should be labeled a T or Z line?
Answers
Answered by
MathGuru
If population standard deviation is not known, usually a t-distribution is used.
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