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Problem 2. In a famous meta-analysis, Linus Pauling examined an experiment in which a group of children at ski school were given a pill containing either 1 gram of Vitamin C or a placebo, and were followed to see if they caught a cold. The data is shown in the two-way table below Total 139 140 279 No Cold 122 109 231 Cold 17 31 48 Vitamin C Placebo Total AWhy did the study use a placebo (instead of just not giving some children any pill at all)? At the 5% significance level, is there a difference in the rate at which children catch colds when given Vitamin C compared to placebo? Under the null hypothesis for the chi-square test of independence, fill in the expected counts in C. the table below, to two decimal places: No Cold Cold Vitamin C Placebo

Problem 2. In a famous meta-analysis, Linus Pauling examined an experiment in which a group of children at ski school were given a pill containing either 1 gram of Vitamin C or a placebo, and were followed to see if they caught a cold. The data is shown in the two-way table below Total 139 140 279 No Cold 122 109 231 Cold 17 31 48 Vitamin C Placebo Total AWhy did the study use a placebo (instead of just not giving some children any pill at all)? At the 5% significance level, is there a difference in the rate at which children catch colds when given Vitamin C compared to placebo? Under the null hypothesis for the chi-square test of independence, fill in the expected counts in C. the table below, to two decimal places: No Cold Cold Vitamin C Placebo

MATLAB: An Introduction with Applications
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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Problem 2. In a famous meta-analysis, Linus Pauling examined an experiment in which a group of children at ski school were given a pill containing either 1 gram of Vitamin C or a placebo, and were followed to see if they caught a cold. The data is shown in the two-way table below Total 139 140 279 No Cold 122 109 231 Cold 17 31 48 Vitamin C Placebo Total AWhy did the study use a placebo (instead of just not giving some children any pill at all)? At the 5% significance level, is there a difference in the rate at which children catch colds when given Vitamin C compared to placebo? Under the null hypothesis for the chi-square test of independence, fill in the expected counts in C. the table below, to two decimal places: No Cold Cold Vitamin C Placebo
Transcribed Image Text:Problem 2. In a famous meta-analysis, Linus Pauling examined an experiment in which a group of children at ski school were given a pill containing either 1 gram of Vitamin C or a placebo, and were followed to see if they caught a cold. The data is shown in the two-way table below Total 139 140 279 No Cold 122 109 231 Cold 17 31 48 Vitamin C Placebo Total AWhy did the study use a placebo (instead of just not giving some children any pill at all)? At the 5% significance level, is there a difference in the rate at which children catch colds when given Vitamin C compared to placebo? Under the null hypothesis for the chi-square test of independence, fill in the expected counts in C. the table below, to two decimal places: No Cold Cold Vitamin C Placebo
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