A group of 500 patients who suffer from migraine headaches is asked to participate in a study to determine the effectiveness of a new medication. The patients are divided randomly into two groups, one was given the actual medication and one received a placebo pill. After 6 months of treatment, 65% of the patients who took the medication had fewer migraines, while only 35% of those who took the placebo had fewer migraines. a. What is the treatment variable? b. What is the response (or outcome) variable? C. Was this an observational study or a controlled experiment? Explain how you know

A group of 500 patients who suffer from migraine headaches is asked to participate in a study to determine the effectiveness of a new medication. The patients are divided randomly into two groups, one was given the actual medication and one received a placebo pill. After 6 months of treatment, 65% of the patients who took the medication had fewer migraines, while only 35% of those who took the placebo had fewer migraines. a. What is the treatment variable? b. What is the response (or outcome) variable? C. Was this an observational study or a controlled experiment? Explain how you know

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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