### Study on Cancer Risks Among Cell Phone Users#### Background:In a study involving 450,900 cell phone users, it was found that 200 individuals developed cancer of the brain or nervous system. Assuming that cell phones have no effect on cancer development, the given probability of a person developing such cancer is 0.000493.#### Statistical Expectation:Based on the provided probability, we would expect approximately 223 cases of brain or nervous system cancer within a group of 450,900 people.#### Problem Statement:Estimate the probability of observing 200 or fewer cases of such cancer in a group of 450,900 individuals. What do these results imply regarding media reports that cell phones cause cancer of the brain or nervous system?#### Calculation:(a) Probability P(x ≤ 200) = _______ (Round to four decimal places as needed.)#### Interpretation:This result will help determine whether the observed number of cancer cases (200) significantly deviates from what is expected (223) purely by chance if cell phones do not influence cancer risk. Comparing this probability with a typical significance level (e.g., 0.05) can provide insights into whether media concerns are statistically warranted.

It is given that the probability of the person developing cancer of the brain or nervous system is…

In a study of 450,900 cell phone users, it was found that 200 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000493 probability of a person developing cancer of the brain or nervous system. We therefore expect about 223 cases of such cancer in a group of 450,900 people. Estimate the probability of 200 or fewer cases of such cancer in a group of 450,900 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(xs 200) = (Round to four decimal places as needed.)

In a study of 450,900 cell phone users, it was found that 200 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000493 probability of a person developing cancer of the brain or nervous system. We therefore expect about 223 cases of such cancer in a group of 450,900 people. Estimate the probability of 200 or fewer cases of such cancer in a group of 450,900 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(xs 200) = (Round to four decimal places as needed.)

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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