Suppose someone finds that people who drank coffee got less sleep than those who didn't.To know whether this statement came from an experiment or a correlation,which question should we ask?

Question

Suppose someone finds that people who drank coffee got less sleep than those who didn't.To know whether this statement came from an experiment or a correlation,which question should we ask?​

Quizplus · Accepted Answer

This question helps determine whether the study was an experiment (randomly assigned groups) or a correlation (participants self-selected their group). Knowing this is important in understanding the cause-and-effect relationship between coffee consumption and sleep.

Suppose Someone Finds That People Who Drank Coffee Got Less