Question: In the presidential election of 2000, a number of events occurred between the initial vote count of Nov. 7 and the count as certified by the Florida Secretary of State following counting of absentee ballots, a machine recount, and a Florida Supreme Court decision to require some hand recounts. Table shows results in selected Florida counties indicating the initial count, the certified count, and the change in votes for Gore.
a. Based on this information, how strong is the relationship between the vote on Nov. 7 and the change (from Nov. 7 to the certified totals)? Please give both the name of the measure and its value.
b. Find the regression equation to predict the change from the number of votes cast on Nov. 7. c. Based on this information, how large a change would you expect to see in a county that recorded 250,000 votes for Gore on Nov. 7?
d. How much larger (or smaller) was the change in Duval County as compared to what you would expect for the number of votes counted in Duval County on Nov. 7, based on this information?
e. How much of the variability in certified totals is explained by the initial count on Nov. 7? Please give the name of the usual measure with its value.
f. Is there a significant relationship between the vote on Nov. 7 and the certified total? Please give the result with justification, using results from a regression to explain Certified Total from Nov. 7.
