Textbook problems 5.18, 5.20.


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<A HREF="T5-2.DAT"> Table 5.2 </A>
for problem 5.18 and
<A HREF="T5-12.DAT"> Table 5.12 </A>
for problem 5.20.

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Optional:  Derive the likelihood ratio test statistic for testing two 
group means are the same when the underlying distribution is multivariate 
normal with two different variance covariance matrix.