Question: Exercise 5.28 introduced data from an analysis investigating whether hatch weights between transgenic and non-transgenic chicks differ. (a) Write an estimated least squares regression line

Exercise 5.28 introduced data from an analysis investigating whether hatch weights between transgenic and non-transgenic chicks differ.

18 X S = transgenic chicks (g) non-transgenic chicks (g) 45.14 3.32

(a) Write an estimated least squares regression line for a model predicting hatch weight from chick type, where non-transgenic chicks are the reference group; i.e., the group for which the binary predictor takes on value 0 .

(b) Write an estimated least squares regression line for a model predicting hatch weight from chick type, where transgenic chicks are the reference group.

Data From Exercise 5.28

54 44.99 4.57 54

18 X S = transgenic chicks (g) non-transgenic chicks (g) 45.14 3.32 54 44.99 4.57 54

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