Answer Happy

Suppose that an oil company gets its crude oil from four different sources, refines it in three different refineries using the same two processes in each refinery. In one part of the refining process, a measurement of efficiency is taken as a percentage and recorded as an integer between 0 and 100. The following data were recorded. Refinery 1 2 3 1 31, 33, 44, 36 42 Process Give the explicit forms of y, X, B and E. 2 37, 59 39 1.1 Write down the linear model for the eight observations. Consider the linear model y = X3 + €. 1.2 Write down the normal equations. 1.3 Show that the following is a solution to the normal equations. B =[ 0 0 9 6 36 48 ]'. (6) (9) (6)