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c) If the decision to vote for Joanna is statistically independent of GPA, fill in the ex- pected cross-tabulation data table below. Support Joanna Support Another Candidate GPA 3.5 GPA 3.5 Total 172 228 Consider the observed cross-tabulation data table below. GPA 3.5 GPA 3.5 Total 148 252 400 Support Joanna Support Another Candidate Total 65 148 163 228 83 89 172 252 400 (Observed; - Expected;)² Expected; for the cross-tabulated data above. Compute the statistic T = ₁ Σ Does the data indicate that the decision to vote for Joanna is statistically independent of GPA?

c) If the decision to vote for Joanna is statistically independent of GPA, fill in the ex- pected cross-tabulation data table below. Support Joanna Support Another Candidate GPA 3.5 GPA 3.5 Total 172 228 Consider the observed cross-tabulation data table below. GPA 3.5 GPA 3.5 Total 148 252 400 Support Joanna Support Another Candidate Total 65 148 163 228 83 89 172 252 400 (Observed; - Expected;)² Expected; for the cross-tabulated data above. Compute the statistic T = ₁ Σ Does the data indicate that the decision to vote for Joanna is statistically independent of GPA?

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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Assessing Statistical Independence in a Categorical Data Set
c) If the decision to vote for Joanna is statistically independent of GPA, fill in the ex- pected cross-tabulation data table below. Support Joanna Support Another Candidate GPA 3.5 GPA 3.5 Total 172 Consider the observed cross-tabulation data table below. GPA 3.5 GPA 3.5 Total 228 Support Joanna Support Another Candidate 65 163 228 83 89 172 Total 148 252 400 Total 148 252 400 (Observed;-Expected;)2 Expected; for the cross-tabulated data above. Compute the statistic T = Σi Does the data indicate that the decision to vote for Joanna is statistically independent of GPA?
Transcribed Image Text:c) If the decision to vote for Joanna is statistically independent of GPA, fill in the ex- pected cross-tabulation data table below. Support Joanna Support Another Candidate GPA 3.5 GPA 3.5 Total 172 Consider the observed cross-tabulation data table below. GPA 3.5 GPA 3.5 Total 228 Support Joanna Support Another Candidate 65 163 228 83 89 172 Total 148 252 400 Total 148 252 400 (Observed;-Expected;)2 Expected; for the cross-tabulated data above. Compute the statistic T = Σi Does the data indicate that the decision to vote for Joanna is statistically independent of GPA?
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