Homework Help: Statistics

Posted by B on Tuesday, January 24, 2012 at 1:31pm.

Suppose that the average annual salary for city employees is $36,000 with an SD of $12,000. The city council decides to give everyone a raise of $400 per year. What is the new average salary and the new SD?

Statistics - PsyDAG, Wednesday, January 25, 2012 at 11:45am
Mean increases $400 and SD stays the same, because all the scores still have the same relationship to the mean.

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