f. Can the findings of this study be used to establish casual relationships?A. Yes, because air pollution is bad for human healthO B. No, because this is an observational studyC. No, because this is an experimentD. Yes, because the sample size is so large Researchers collected data to examine the relationship between pollutants and preterm births in Southern California. During the study air pollutionlevels were measured by air quality monitoring stations. Specifically, levels of carbon monoxide were recorded in parts per million, nitrogen dioxide andozone in parts per hundred million, and coarse particulate matter PM10 in µg/m3. Length of gestation data were collected on 143,196 births betweenthe years 1989 and 1993, and air pollution exposure during gestation was calculated for each birth. The analysis suggested that increased ambientPM10 and, to a lesser degree, CO concentrations may be associated with the occurrence of preterm births.a. The paragraph above describes anO A. Observational StudyB. Experimentb. The cases in this research areOA. Air pollution exposure during gestationB. Each birth between 1989 and 1993C. Each type of pollution measured by air quality monitoring stationsD. Each year between 1989 and 1993c. What is the research question?A. How prevalent was preterm birth during the years 1989 to 1993?B. How much air pollution is there in Southern California?C. Are preterm births associated with air pollution levels?D. How can expectant mothers avoid air pollution?d. What is the population of interest?A. All air quality monitoring stationsB. All environmental pollutantsC. All years for which air quality has been measuredOD. All human babiese. What is the sample?A. The pollution measurements for the 4 pollutantsB. The 143,196 birthsC. All air quality monitoring stationsD. The years between 1989 and 1993

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Description: f. Can the findings of this study be used to establish casual relationships?A. Yes, because air pollution is bad for human healthO B. No, because this is an observational studyC. No, because this is an experimentD. Yes, because the sample size is so

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a. The paragraph above describes an A. Observational Study B. Experiment b. The cases in this research are A. Air pollution exposure during gestation B. Each birth between 1989 and 1993 C. Each type of pollution measured by air quality monitoring stations D. Each year between 1989 and 1993

a. The paragraph above describes an A. Observational Study B. Experiment b. The cases in this research are A. Air pollution exposure during gestation B. Each birth between 1989 and 1993 C. Each type of pollution measured by air quality monitoring stations D. Each year between 1989 and 1993

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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