A researcher conducts an experiment to examine the relationship between the weight gain of...

A researcher conducts an experiment to examine the relationship between the weight gain of chickens whose diets had been supplemented by different amounts of the amino acid lysine and the amount of lysine ingested. Because the percentage of lysine is known and we can monitor the amount of feed consumed, we can determine the amount of lysine eaten. A random sample of 12 2-week-old chickens was selected for the study. Each was caged separately and was allowed to eat at will from feed composed of a base supplemented with lysine. The sample data summarizing weight gains and amounts of lysine eaten over the test period are given here. (In the data, y represents weight gain in grams and x represents the amount of lysine ingested in grams.)

a. Refer to the output. Does a linear model seem appropriate?

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b. From the output, obtain the estimated linear regression model