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March 30, 2015

Homework Help: Statistics

Posted by Mike on Monday, June 18, 2012 at 10:55pm.

An organization is studying whether women have caught up to men in starting pay after attending college. They randomly sampled 28 women, who earned an average of $38,293.78 out of college with a standard deviation of $5,170.22. Twenty-four men were also randomly sampled, and their earnings averaged $41,981.82 with a standard deviation of $3,195.42. Using a significance level of 0.02, do these data provide strong evidence that women have not yet caught up to men in terms of pay? If so, can we make a causal con- clusion? If so, explain why. If not, provide an example of why the causal interpretation would not be valid.

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