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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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Please be aware that some of the following problems may

Chapter 11, Problem 1CRE

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QUESTION:

Please be aware that some of the following problems may require knowledge of concepts presented in previous chapters. Weather-Related Deaths? Review Exercise 1 involved weather-related deaths. Among the 489 deaths included in the table, 325 are males. Use a 0.05 significance level to test the claim that among those who die in weather-related deaths, the percentage of males is equal to 50%. Exercise 1 ICU Patients? Listed below are the ages of randomly selected patients in intensive care units (based on data from “A Multifaceted Intervention for Quality Improvement in a Network of Intensive Care Units,” by Scales et al., ?Journal of the American Medical Association,? Vol. 305, No. 4). Find the mean, median, and standard deviation. Based on the results, is an age of 16 years ?unusual?.? Why or why not?

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QUESTION:

Please be aware that some of the following problems may require knowledge of concepts presented in previous chapters. Weather-Related Deaths? Review Exercise 1 involved weather-related deaths. Among the 489 deaths included in the table, 325 are males. Use a 0.05 significance level to test the claim that among those who die in weather-related deaths, the percentage of males is equal to 50%. Exercise 1 ICU Patients? Listed below are the ages of randomly selected patients in intensive care units (based on data from “A Multifaceted Intervention for Quality Improvement in a Network of Intensive Care Units,” by Scales et al., ?Journal of the American Medical Association,? Vol. 305, No. 4). Find the mean, median, and standard deviation. Based on the results, is an age of 16 years ?unusual?.? Why or why not?

ANSWER:

Solution 1CRE Step1: From the above given problem we have to test the claim that among those who die in weather related deaths, 50% are males. Now, consider the null and alternat

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