Use the traditional method. Be sure to include the null and alternative, significance level, critical value(s), the test statistic with calculations shown, the properly drawn graph, decision criteria, decision and one of the four possible conclusions. Don't forget to answer the question at the end of the problem. **Ginkgo for Dementia**The herb ginkgo biloba is commonly used as a treatment to prevent dementia. In a study of its effectiveness, 1673 elderly subjects were given ginkgo and 1964 elderly subjects were given a placebo. Among those in the ginkgo group, 231 later developed dementia, and among those in the placebo group, 252 developed dementia. Use a 0.05 significance level to test the claim that ginkgo is effective in preventing dementia. Based on your results, is ginkgo effective in preventing dementia?

Solution: The claim is to test if the herb ginkgo biloba is effective in preventing dementia. Let p1…

Answered: Use the traditional method. Be sure to…

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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Use the traditional method. Be sure to include the null and alternative, significance level, critical value(s), the test statistic with calculations shown, the properly drawn graph, decision criteria, decision and one of the four possible conclusions. Don't forget to answer the question at the end of the problem.

**Ginkgo for Dementia**

The herb ginkgo biloba is commonly used as a treatment to prevent dementia. In a study of its effectiveness, 1673 elderly subjects were given ginkgo and 1964 elderly subjects were given a placebo. Among those in the ginkgo group, 231 later developed dementia, and among those in the placebo group, 252 developed dementia. Use a 0.05 significance level to test the claim that ginkgo is effective in preventing dementia. Based on your results, is ginkgo effective in preventing dementia?

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