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Sample vs. Population: Determine whether the evaluated group is a population or a sample.

1) Determine whether the evaluated group is a population or a sample.

a) Based on a randomly selected group of 500 patients with high cholesterol, it was found that 67% have heart disease. Is
this a population or a sample; explain your answer.
b) An investigation of 150 randomly selected local restaurants concluded that 42% of local restaurants have serious health
code violations. Is this a population or a sample; explain your answer.

Solution Preview

a) Based on a randomly selected group of 500 patients with high cholesterol, it was found that 67% have heart disease. Is this a population or a sample; explain your answer.

Solution:
It is a sample.

Reason: In statistics, when a person is talking about a population, it must involve the entire set of interest. In ...

Solution Summary

This solution briefly discusses why these examples are either populations or samples.

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