Thursday
July 24, 2014

Homework Help: statistics

Posted by Anonymous on Friday, February 26, 2010 at 6:39pm.

we want to if men and women perform differently on statistics tests. The average of 15 men's scores was 76. The average of 10 women's scores was 83. The standard deviation in both cases is 10. Test at 5% significance level.
what is the null and alternate hypothese?
is it a one tail or two?
what is the value of statistic?
what is the decision rule?
what can we conclude?

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