6.

A regression model is fit relating % party vote (Y) to party unlikeness score (X) in votes in the U.S. Congress. The following SPSS output gives the results of the simple linear regression model being fit. Note: High values of Y mean the two parties are more polarized (majority of one party voted one way, majority of other party voted other way). The party unlikeness score is scaled so that the more the parties differ, the higher X will be.

Model: E(Y) = + X Conditional Standard Deviation:

a)

Give the fitted equation: ____________________

b)

Give the estimate of _____________________

c)

Give the proportion of variation in Y “explained” by X _____________

d)

Give a 95% confidence interval for _______________

e)

Give the coefficient of correlation _____________

Give the P-value for testing H0: =0 vs HA: 0 ________________