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Question
Submitted by Clay1203 on Thu, 2012-02-02 00:42
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The director of a university’s career development center is interested in comparing the starting annual salaries of male and female...

The director of a university’s career development center is interested in comparing the starting annual salaries of male and female students who recently graduated from the university and commenced full-time employment. The director has formed pairs of male and female graduates with the same major and similar grade- point averages. Specifically, she has collected a random sample of 50 such pairs and has recorded the starting annual salary of each person. Data is provided in attached spreadsheet. Find a 95% confidence interval for the mean difference between similar male and female graduates of this university. Interpret your result.

Answer
Submitted by shahimermaid on Thu, 2012-02-02 08:22
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In case of xxx problem x xxxxxx xxxxxxx me xx xxxxxx it

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Confidence intervals contain population xxxxxx found xx be consistent xxxx the data. If x xxxxxxxxxx xxxxxxxx xxx a xxxx difference includes xx xxx xxxx xxx xxxxxxxxxx with x population mean difference xx 0. If the xxxxxxxxxx is xx the xxxxxxxxxx means xxx xxxxxx xx the xxxxxxxxxx interval xxx x difference excludes 0, the xxxx xxx xxx xxxxxxxxxx with xxxxx population means. x xxx xxxxxxxxxx xxxxxxxx xx xx interval xxxxxxxxx xx x xxxxxxx that's xxxxx xxx xx the xxxxx

To construct a confidence xxxxxxxxx we need to know xxx xxxxxxxxxxx xx the difference xxxxxxx sample xxxxxx xxxx means xx need xx know how xx xxxxxxx xxx standard deviation of the xxxxxxxx distribution of the xxxxxxxxxxx

If xxx population xxxxxxxx xxxxxxxxxx are known, xxx standard deviation xx the xxxxxxxx

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