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A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political party preference among registered voters in this county differs between those who live in Pittsburgh and those who live in the suburbs. The responses are displayed in the table. Political Party Democratic Independent Republican City 20 8 11 Location Suburbs 8 10 18 The pollster would like to know if these data provide convincing evidence of a relationship between residential status and political party in the population of all registered voters in Allegheny County. The random and 10% conditions are met, and this table of expected counts shows that all expected counts are at least 5. Political Party Democratic Independent Republican City 14.56 9.36 15.08 Location Suburbs 13.44 8.64 13.92

A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political party preference among registered voters in this county differs between those who live in Pittsburgh and those who live in the suburbs. The responses are displayed in the table. Political Party Democratic Independent Republican City 20 8 11 Location Suburbs 8 10 18 The pollster would like to know if these data provide convincing evidence of a relationship between residential status and political party in the population of all registered voters in Allegheny County. The random and 10% conditions are met, and this table of expected counts shows that all expected counts are at least 5. Political Party Democratic Independent Republican City 14.56 9.36 15.08 Location Suburbs 13.44 8.64 13.92

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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What is the value of the chi-square test statistic for this test? O x? = 2.64 O x² = 2.83 x² = 6.95 O x? = 8.03
Transcribed Image Text:What is the value of the chi-square test statistic for this test? O x? = 2.64 O x² = 2.83 x² = 6.95 O x? = 8.03
A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political party preference among registered voters in this county differs between those who live in Pittsburgh and those who live in the suburbs. The responses are displayed in the table. Political Party Democratic Independent Republican City 20 11 Location Suburbs 8 10 18 The pollster would like to know if these data provide convincing evidence of a relationship between residential status and political party in the population of all registered voters in Allegheny County. The random and 10% conditions are met, and this table of expected counts shows that all expected counts are at least 5. Political Party Democratic Independent Republican City 14.56 9.36 15.08 Location Suburbs 13.44 8.64 13.92
Transcribed Image Text:A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political party preference among registered voters in this county differs between those who live in Pittsburgh and those who live in the suburbs. The responses are displayed in the table. Political Party Democratic Independent Republican City 20 11 Location Suburbs 8 10 18 The pollster would like to know if these data provide convincing evidence of a relationship between residential status and political party in the population of all registered voters in Allegheny County. The random and 10% conditions are met, and this table of expected counts shows that all expected counts are at least 5. Political Party Democratic Independent Republican City 14.56 9.36 15.08 Location Suburbs 13.44 8.64 13.92
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