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MMLU / A company has 1000 employees evenly distributed throughout five assembly plants.…

Problem

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question

A company has 1000 employees evenly distributed throughout five assembly plants. A sample of 30 employees is to be chosen as follows. Each of the five managers will be asked to place the 200 time cards of their respective employees in a bag, shake them up, and randomly draw out six names. The six names from each plant will be put together to make up the sample. Will this method result in a simple random sample of the 1000 employees?

choices

  1. Yes, because every employee has the same chance of being selected.
  2. Yes, because every plant is equally represented.
  3. Yes, because this is an example of stratified sampling, which is a special case of simple random sampling.
  4. No, because not every group of 30 employees has the same chance of being selected.

subject

high_school_statistics

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