(Answered) Question an advertisement for a cross-country ski machine

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Question: An advertisement for a cross-country ski machine, NordicTrack, claimed, "In just 12 weeks, research shows that people who used a NordicTrack lost an average of 18 pounds." Explain how each of the following components should have been addressed if the research results are fair and unbiased.

a. Component 3: The individuals or objects studied and how they were selected.

b. Component 4: The exact nature of the measurements made or questions asked.

c. Component 5: The setting in which the measurements were taken.

d. Component 6: Differences in the groups being compared, in addition to the factor of interest.

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