HW 13 2 - 19712.16 2190.24 92.16 9101.16 915.84 21.16 7293.16 392.84 2.56 924.16 48.64 2.56 237.16 24.64 1.96 213.16 20.44 5.76 345.96 44.64 40.96

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Restaurant # of Students Annual Sales (x-xbar) (y-ybar) 1 10 115 -15.6 -140.4 2 16 160 -9.6 -95.4 3 21 170 -4.6 -85.4 4 24 225 -1.6 -30.4 5 24 240 -1.6 -15.4 6 27 270 1.4 14.6 7 28 274 2.4 18.6 8 32 280 6.4 24.6 9 34 380 8.4 124.6 10 40 440 14.4 184.6 25.6 255.4 0 0 Dog # of Biscuits Show Score (x-xbar) (y-ybar) 1 2 4 -3 -3 2 6 8 1 1 3 4 7 -1 0 4 8 9 3 2 5 7 0 0 xbar ybar xi yi xi^2 30.73 45.35 159.69 235.76 25500.8 (xi-xbar)^2/(n-1) (x-xbar)(y-ybar)/(n-1) cov(x,y)/sx^2 639.68 944.47 1.48 sx^2 covariance 639.68 944.47 b0 b1 -784.26 -37618.3 -3600.54 10.45 xi*yi
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(x-xbar)^2 (y-ybar)^2 (x-xbar)(y-ybar) 243.36
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Unformatted text preview: 19712.16 2190.24 92.16 9101.16 915.84 21.16 7293.16 392.84 2.56 924.16 48.64 2.56 237.16 24.64 1.96 213.16 20.44 5.76 345.96 44.64 40.96 605.16 157.44 70.56 15525.16 1046.64 207.36 34077.16 2658.24 76.49 9781.6 833.29 833.29 covariance 749.96 B1 10.89 B0-23.49 (x-xbar)^2 (y-ybar)^2 (x-xbar)(y-ybar) 9 9 9 1 1 1 1 9 4 6 6.67 1.17 5.33 covariance 4 b1 0.8 b0 3 yi^2 55581.25...
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This note was uploaded on 05/05/2010 for the course ECONMOICS ECON 203 taught by Professor Josephpetry during the Spring '10 term at University of Illinois, Urbana Champaign.

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HW 13 2 - 19712.16 2190.24 92.16 9101.16 915.84 21.16 7293.16 392.84 2.56 924.16 48.64 2.56 237.16 24.64 1.96 213.16 20.44 5.76 345.96 44.64 40.96

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