$2.00 Certified Correct Answer --full explanation
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- Posted on Nov 10, 2008 at 9:45:31PM
A:
Preview: ... <br>The variance of a normal random variable is itself a random variable following the chi-square distribution. To determine if two variances are equal we look at the ratio of the variances. this ratio follows an F distribution. This is high ...
The full tutorial is about 202 words long .
$5.00 Another A+ Answer
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- Posted on Apr 28, 2009 at 11:08:50PM
A:
Preview: ... he variance is as expected.<br><br>If the F statistic is small, then it indicates that the observed variation is near the expected variance and there is no evidence to reject the null hypothesis that all the group means are equal. If the F statistic is large ...
The full tutorial is about 214 words long .
