2. In the same study from question 1, scientists recorded Hg levels in a control group of the same species (i.e. animals not exposed to radiation). In a sample of 20 animals, the sample mean and standard deviation were 18.1, and 0.83, respectively. a. Find the 95% confidence interval for the ratio of the two population variances. b. Based on your result in (a), choose the appropriate method to construct a 95% confidence interval for the difference of means between the two groups. Can you conclude that radiation lowers blood Hg levels?
2. In the same study from question 1, scientists recorded Hg levels in a control group of the same species (i.e. animals not exposed to radiation). In a sample of 20 animals, the sample mean and standard deviation were 18.1, and 0.83, respectively. a. Find the 95% confidence interval for the ratio of the two population variances. b. Based on your result in (a), choose the appropriate method to construct a 95% confidence interval for the difference of means between the two groups. Can you conclude that radiation lowers blood Hg levels?
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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