The straight-line model, E(y) = 0 + 1x , where y = exam score (ranging from 0 to
ID: 3046596 • Letter: T
Question
The straight-line model, E(y) = 0 + 1x , where y = exam score (ranging from 0 to 100 points) and x= amount paid to a doctor (dollars) yielded the following prediction equation: y-hat = 65 + 2x Give a practical interpretation of the estimated slope of the line.
A. We estimate exam score to increase 2 points for every 1 dollar increase in amount paid to a doctor.
B. We estimate exam score to increase 65 points for every 1 dollar increase in amount paid to a doctor.
C. We estimate exam score to be 2 points when 0 dollars are paid to a doctorExplanation / Answer
Option-A) is the correct answer.
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