Another researcher is interested in the same regression, but he makes an

error when he enters the data into his regression program: He enters each

observation twice, so he has 200 observations (with observation 1 entered

twice, observation 2 entered twice, and so forth).

a. Using these 200 observations, what results will be produced by his

regression program? (Hint: Write the “incorrect” values of the sample

means, variances and covariances of Y and X as functions of the

“correct” values. Use these to determine the regression statistics.)

Y = + X SER=

R2 — — = . ‘ __ , —

(_)(_)