Sampling Methods

A company’s human resources office wants to know what percent of its 1,000 employees work part-time, without asking everyone. Draw samples five different ways and see which methods are unbiased, and which systematically overestimate or underestimate the percent.

1,000 employees25 departments (rows)20% part-time

Percent part-time in each sample

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Parameter
20%
The percent part-time in the population: 200 of the 1,000 employees.
Statistic