Answered: A study published in 2005 examined…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A study published in 2005 examined health and diet
among a representative sample of Canadian women.
Researchers reported that only 6.8% of women who werevegetarians had high cholesterol, compared to 11.3% of
non-vegetarians.
a) Explain two reasons why this study would not justify
a newspaper headline proclaiming, “Want to Lower
Your Cholesterol? Become a Vegetarian!” Include an
alternative explanation for the reported difference.
b) If these results were based on data collected from 162
vegetarians and 177 non-vegetarians, do they provide
statistical evidence that there’s a difference in the
rates of high cholesterol in the two populations?

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