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    Statistics : Proportionate stratified sample

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    You wish to do a community needs assessment survey of a community to find out how much office space is needed by professionals in the community. To do this you will select a proportionate stratified sample of professional . The population consists of
    75 dentists
    175 physicians
    250 lawyers
    25 psychiatrists
    25 misc.

    Assuming you wish to select a sample of 80 professionals , how many should be selected from the five groups?

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    Solution Summary

    The expert determines how many professionals should be selected from the five groups. A complete, neat and step-by-step solution is provided in the attached Excel file.