The following data is representative of that reported in thearticle An Experimental
Chapter 12, Problem 19(choose chapter or problem)
The following data is representative of that reported in thearticle An Experimental Correlation of Oxides of NitrogenEmissions from Power Boilers Based on Field Data (J. of Engr.for Power, July 1973: 165170), with burner-area liberationrate (MBtu/hr-ft2) and y 5 NO emission rate (ppm):x 100 125 125 150 150 200 200y 150 140 180 210 190 320 280x 250 250 300 300 350 400 400y 400 430 440 390 600 610 670a. Assuming that the simple linear regression model is valid,obtain the least squares estimate of the true regression line.b. What is the estimate of expected NOx emission rate whenburner area liberation rate equals 225?c. Estimate the amount by which you expect NOx emissionrate to change when burner area liberation rate isdecreased by 50.d. Would you use the estimated regression line to predictemission rate for a liberation rate of 500? Why or why not?
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