In Applied Spectroscopy, the infrared reflectance spectra properties of a viscous liquid used in the electronics industry as a lubricant were studied. The designed experiment consisted of the effect...

In Applied Spectroscopy, the infrared reflectance spectra properties of a viscous liquid used in the electronics industry as a lubricant were studied. The designed experiment consisted of the effect of band frequency x1 and film thickness x2 on optical density y using a Perkin-Elmer Model 621 infrared spectrometer. [Source: Pachansky, J., England, C. D., and Wattman, R. "Infrared spectroscopic studies of poly (perflouropropyleneoxide) on gold substrate. A classical dispersion analysis for the refractive index" Applied Spectroscopy Vol. 40, No. 1, Jan. 1986, p. 9, Table 1] Estimate the multiple linear regression equation y = b o + b1x1 +b2x2.