In Analytical Chemistry (May 2010), chemical engineers tested a new method of typing blood using lost cost

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In Analytical Chemistry (May 2010), chemical engineers tested a new method of typing blood using lost cost paper. Blood drops were applied to the paper and the rate of absorption (called blood wicking) was measured. The table below gives the wicking lengths (millimeters) for six blood drops, each at a different antibody concentration. Let y = wicking length and x = antibody concentration.

a. Give the equation of the straight-line model relating y to x.

b. An SPSS printout of the simple linear regression analysis is shown above. Give the equation of the least squares line.

c. Give practical interpretations (if possible) of the estimated y-intercept and slope of the line.

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Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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