Members of fraternities and sororities are required to volunteer for community service. Do fraternity brothers work an equal number of volunteer hours on average compared to sorority sisters? The data below show the number of volunteer hours worked for twelve randomly selected fraternity brothers and eleven randomly selected sorority sisters. Brothers: 13 13 8 12 6 9 10 9 6 13 6 11 Sisters: 2 5 8 8 8 8 6 9 9 2 4

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.