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corrected total The investigators also analyzed these 15 matched pairs using a l

ID: 3173756 • Letter: C

Question

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The investigators also analyzed these 15 matched pairs using a linear regression model of the form pressure2 = b0 + b1*pressure1 where pressure2 is the measurement with the new device and pressure1 is the measurement with the standard device. Tha ANOVA table for the model is given below. What is the value for the sum of square error?

What is the R squared for the above analyses of pressure1 and pressure2?

Source DF Sum of Squares Mean Square model 1 8.2 8.2 error

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247.6

Explanation / Answer

value for the sum of square error =SSE=SST-SSR =247.6-8.2=239.4

and R squared =SSR/SST=8.2/247.6 =0.033