An article in the journal of the american ceramic society,“rapid hot-pressing of ultrafine psz powders” (1991,vol. 74, pp. 1547–1553) considered the microstructure of theultrafine powder of partially stabilized zirconia as a function oftemperature. the data are shown below: x = temperature (°c) 1100 1200 1300 1100 1500 1200 1300y = porosity (%) 30.8 19.2 6 13.5 11.4 7.7 3.6fit the simple linear regression model using the method of leastsquares. find the least squares estimates of the intercept(a) and slope (b) in the simplelinear regression model. find an estimate of (c).estimate the mean porosity for a temperature of 1406 °c() = ) = ) = ) =