Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visual analog scale, and the results given below are among the results obtained in the study. Higher scores correspond to greater pain levels. Is this study an experiment or an observational study? Explain.
Reduction in Pain Level After Magnet Treatment: nequals=2020, x overbarxequals=0.4930.493, sequals=0.9590.959
Reduction in Pain Level After Sham Treatment: nequals=2020, x overbarxequals=0.4420.442, sequals=1.361.36

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09-08-2024
Mathematics

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Researchers conducted a study to determine whether magnets are effective in treating back pain. Pain was measured using the visual analog scale, and the results given below are among the results obtained in the study. Higher scores correspond to greater pain levels. Is this study an experiment or an observational study? Explain.
Reduction in Pain Level After Magnet Treatment: nequals=2020, x overbarxequals=0.4930.493, sequals=0.9590.959
Reduction in Pain Level After Sham Treatment: nequals=2020, x overbarxequals=0.4420.442, sequals=1.361.36

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