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Comparing with z-scores
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Problem
People tend to be members in the Senate later in their careers than they are in the House of Representatives. Here are some summary statistics for the ages of members of the House of Representatives and the Senate one year in the United States.
Group | Mean age | Standard deviation |
---|---|---|
Senate | ||
House of Representatives |
The Senate minority leader that year was years old, while the House of Representatives minority leader was years old.
Relative to their group, which leader was older?
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