From the following data estimate the partial regression coefficients, their standard errors, and the adjusted and unadjusted R2 values: Y = 367.693 X2 = 402.760 X3 = 8.0 (X-Y)2-66042 .269 (X2-X2)2 84855.096 (Xy-X3)2-280.000 (X-)(X-i-X2-74778 .346 (X-Y)(Xy-X) = 4250.900 (X2i-X2)(X3i-X's) = 4796.000 n= 15