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March 26, 2017

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A superstore manager wishes to give out a survey to a sample of 25 of its workers. It wants the sample to be a good representation of the workers. The table shows the numbers of workers in each section of the work force:

Working tills: 32
Stacking shelves: 24
Office/managers: 24
Warehouse: 20

Describe exactly how this can be done.

  • Statistics - ,

    any help?

  • Statistics - ,

    Either it can be done completely randomly or randomly within each group, taking 8 from the largest group, 5 from the smallest and 6 each from the middle groups. (That is 25% of each group.)

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