Question 9 Humans aren't the only animals that get cancer; other organisms get tumors, as well,...
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Question 9 Humans aren't the only animals that get cancer; other organisms get tumors, as well, and their risk may be influenced by environmental factors. An ecologist decides to study whether pollution in lakes causes cancer, so he collects 100 fish from each of two lakes, one known to be polluted and the other known to be pristine. He then dissects them and determines if they have tumors in their tissues or not. His data is shown below. Tumors present 3.7 5.7 7.7 No tumors 9.7 Polluted 26 74 Pristine To determine whether there appears to be a statistically significant relationship between exposure to pollution and risk of developing tumors, he decides to conduct a x2 analysis. When performing this analysis, which of the values below is closest to the x2 statistic he would obtain? 15 1 pts 85 Question 9 Humans aren't the only animals that get cancer; other organisms get tumors, as well, and their risk may be influenced by environmental factors. An ecologist decides to study whether pollution in lakes causes cancer, so he collects 100 fish from each of two lakes, one known to be polluted and the other known to be pristine. He then dissects them and determines if they have tumors in their tissues or not. His data is shown below. Tumors present 3.7 5.7 7.7 No tumors 9.7 Polluted 26 74 Pristine To determine whether there appears to be a statistically significant relationship between exposure to pollution and risk of developing tumors, he decides to conduct a x2 analysis. When performing this analysis, which of the values below is closest to the x2 statistic he would obtain? 15 1 pts 85
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A37 Explaination Here we are given that Polluted Pristine Tumors Presen... View the full answer
Related Book For
Money, Banking, Financial Markets and Institutions
ISBN: 978-0538748575
1st edition
Authors: Michael Brandl
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