Read the following information and answer the corresponding questions:
The following table contains data of region of birth and political party of the ?rst 44 U.S. presidents. The table uses these abbreviations: F = Federalist, DR = Democratic-Republican, D = Democratic, W = Whig, R = Republican, U = Union, NE = Northeast, MW = Midwest, SO = South, WE = West
Region Party Region Party Region Party
SO F SO R MW R
NE F SO U NE D
SO DR MW R MW D
SO DR MW R SO R
SO DR MW R NE D
NE DR NE R SO D
SO D NE D WE R
NE D MW R MW R
SO W NE D SO D
SO W MW R MW R
SO D NE R NE R
SO W MW R SO D
Module Chi Square and Anova
Exercise 5.2
Chi Square Procedures
Region Party Region Party Region Party
NE W SO D NE R
NE D MW R WE D
NE D NE R
Find the conditional distributions of birth region by party and the marginal distribution of birth Group the bivariate data for the variables "birth region" and "party" into a contingency table.
• What are the two variables under consideration?
• What is the population under consideration?
• Does an association exist between the variables "birth region" and "party" for the U.S. presidents?
• Find the conditional distributions of party by birth region and the marginal distribution of the party region.
• If no association existed between birth region and party, what percentage of presidents born in the What percentage of presidents are republicans? Explain your answer.
• In reality, what percentage of presidents born in the south are Republicans? south would be Republicans?