A chemical engineer wants to fit a straight line to the

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Reference no: EM13608140

A chemical Engineer wants to fit a straight line to the data found observing the tensile strength, Y, of 10 test pieces of plastic that have undergone baking (at a uniform temperature) for X minutes, where 10 values of X were preselected. The data (in coded units) is given below. Find, assuming n=E(Y l X) = B0 + B1X1 the least squares estimates of B0 and B1, and hence the least squares estimates of n. Construct 95% confidence intervals for B0 , B B1, and n0 = B0 + B1x0

X	23	35	45	65	75	95	105	125	155	185
Y	2	9.8	9.2	26.2	17.1	24.8	43	55.3	38.4	63.3

Reference no: EM13608140

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