Before the elections of a city mayor, a journalist has asked several people in 2 two districts about their about their preferences. 80% of 150 respondents in district 1 and 75% of 180 respondents in district 2 told that they prefer candidate A. Can the journalist conclude at alpha=0.05 that there is significant difference in the preferences of district 1 and 2 citizens?Select one:a.Z(stat)=2.51, which is less than Z(cr)=1.64, therefore, we cannot conclude that there is no significant differenceb.Z(stat)=1.079, which is less than Z(cr)=1.64, therefore, we can conclude that there is significant differencec.Z(stat)=1.079, which is less than Z(cr)=1.96, therefore, we can conclude that there is no significant differenced.Z(stat)=2.51, which is less than Z(cr)=1.96, therefore, we can conclude that there is significant difference

Answered: Before the elections of a city mayor, a…

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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Before the elections of a city mayor, a journalist has asked several people in 2 two districts about their about their preferences. 80% of 150 respondents in district 1 and 75% of 180 respondents in district 2 told that they prefer candidate A. Can the journalist conclude at alpha=0.05 that there is significant difference in the preferences of district 1 and 2 citizens?

Select one:

Z(stat)=2.51, which is less than Z(cr)=1.64, therefore, we cannot conclude that there is no significant difference

Z(stat)=1.079, which is less than Z(cr)=1.64, therefore, we can conclude that there is significant difference

Z(stat)=1.079, which is less than Z(cr)=1.96, therefore, we can conclude that there is no significant difference

Z(stat)=2.51, which is less than Z(cr)=1.96, therefore, we can conclude that there is significant difference

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