Question

Acrylamide is a chemical that is sometimes found in cooked starchy foods and which is thought to increase the risk of certain kinds of cancer. The paper "A Statistical Regression Model for the Estimation of Acrylamide Concentrations in French Fries for Excess Lifetime Cancer Risk Assessment"† describes a study to investigate the effect of frying time (in seconds) and acrylamide concentration (in micrograms per kilogram) in french fries. The data in the accompanying table are approximate values read from a graph that appeared in the paper.

Frying Time	Acrylamide Concentration
150	155
240	120
240	195
270	190
300	145
300	270

A) Find the equation of the least squares regression line for predicting acrylamide concentration using frying time. (Round your answers to three decimal places.)

ŷ =......... + (.......)x

Answer 1