Posted by Anonymous on Saturday, July 30, 2011 at 1:44pm.
A random sample of 10 observations is selected from the first normal population and 8 from the second normal population. For the hypothesis, H0: ¦Ì1 ¡Ü ¦Ì2, (.01 significance level), what is (are) the critical value(s)? (Population standard deviations are unknown).

statistics  PsyDAG, Sunday, July 31, 2011 at 11:53am
You need some measure of variability to answer this question.

statistics  Anonymous, Monday, January 4, 2016 at 1:26pm
A random sample of 10 observations is selected from the first normal population and 8 from the second normal population. For the hypothesis, H0: ¦Ì1 ¡Ü ¦Ì2, (.01 significance level), what is (are) the critical value(s)? (Population standard deviations are unknown