Sampling statistics question

Statistics
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The manager of a company wants to investigate job satisfaction among its employees. One morning after a meeting, she talks to all 25 employees who attended. Does this sampling plan result in a random sample? What type of sample is it? Explain.

Nov 13th, 2015

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The manager selects the employees who attend the morning meeting.  This is not a random sample, because she only chose those employees that seem satisfied enough with the company to attend a meeting.  What about those who did not attend?

This sampling plan does not result in a random sample.  This type of sampling is called "Convenience Sampling" because the sample is made up of people who are easy to reach. Similar to a pollster interviewing shoppers at a local mall.

It is similar to a cluster sample because a random cluster of the population was chosen.  But it is not a cluster sample because the manager did not divide the whole company population into different groups.

It is not a systematic sample because she did not set a fixed interval in which to select employees.

It is not a stratified sample because she did not break up the population into groups and select randomly from each group.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 13th, 2015

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Nov 13th, 2015
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Nov 13th, 2015
Dec 7th, 2016
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