Tests for adverse reactions to a new drug yield the results in the table. At the 5% significance level, perform a chi-square independence test to determine if an association exists between the treatment (drug or placebo) and the reaction (whether headaches were experienced. Drug Placebo Total Headache 104 75 179 No headache 75 93 168 Total 179 168 347

1 State the hypotheses. Null hypothesis: Alternative hypothesis:

Answered: Tests for adverse reactions to a new…

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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Tests for adverse reactions to a new drug yield the results in the table. At the 5% significance level, perform a chi-square independence test to determine if an association exists between the treatment (drug or placebo) and the reaction (whether headaches were experienced.

Drug Placebo Total

Headache 104 75 179

No headache 75 93 168

Total 179 168 347

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