Critical Thinking: What’s Wrong? In Exercises 21–28, determine whether the study is an experiment or an observational study, and then identify a major problem with the study. Blood Pressure A medical researcher tested for a difference in systolic blood pressure levels between male and female students who are 12 years of age. She randomly selected four males and four females for her study.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 12E
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Critical Thinking: What’s Wrong? In Exercises 21–28, determine whether the study is an experiment or an observational study, and then identify a major problem with the study.

Blood Pressure A medical researcher tested for a difference in systolic blood pressure levels between male and female students who are 12 years of age. She randomly selected four males and four females for her study.

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