1. A group of investigators wishes to explore the relationship between the use of hair dyes and the development of breast cancer in females. A group of 100 beauticians 40–49 years of age is identified and followed for five years. After five years, 20 new cases of breast cancer have occurred. Assume that breast cancer incidence over this time period for average American women in this age group is 30/100. We wish to test the hypothesis that using hair dyes decrease the risk of breast cancer.  Compute p-value the answer is not 0.0021 a) 0 b) 47.6190

MATLAB: An Introduction with Applications
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1. A group of investigators wishes to explore the relationship between the

use of hair dyes and the development of breast cancer in females. A

group of 100 beauticians 40–49 years of age is identified and followed

for five years. After five years, 20 new cases of breast cancer have

occurred. Assume that breast cancer incidence over this time period for

average American women in this age group is 30/100. We wish to test

the hypothesis that using hair dyes decrease the risk of breast cancer. 

Compute p-value

the answer is not 0.0021

a) 0

b) 47.6190

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