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1Question 12 A researcher attempted to recruit all 150 of the patients seen in the emergency department in a three-month period for diverticulitis, but only120 consented to participate. What is the sample size
2A researcher is studying the effect of hypnosis on pain experienced during dental procedures. The researcher’s study has two groups: those whoreceive hypnosis during the procedure and those who receive nohypnosis. If the researcher plans to use at-test for the statistical analysis,which would be the best way to measure pain for this study

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