In order to assess the effects of exercise on reducing cholesterol, a researcher

Question

In order to assess the effects of exercise on reducing cholesterol, a researcher sampled fifty people from a local gym who exercised regularly and fifty people from the surrounding community who did not exercise regularly. They all reported to a clinic to have their cholesterol measured. The subjects were unaware of the purpose of the study, and the technician measuring the cholesterol was not aware whether or not subjects exercised regularly. This is a(n)

block design.

experiment, but not a double-blind experiment.

observational study.

double-blind experiment.

single-blind experiment.

block design.

experiment, but not a double-blind experiment.

observational study.

double-blind experiment.

single-blind experiment.

Explanation / Answer

THIS KIND OF STATISTICS IS JUST FOR OBSERVATIONAL PURPOSE

so, OPTION C - AN OBSERVATIONAL STUDY

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