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QUESTION
A STAT 200 instructor believes that the average quiz score is a good predictor of final exam score.
y
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98
50
70
96
60
83
75
77
87
(a) Find an equation of the least squares regression line. Show all work; writing the correct equation, without supporting work, will receive no credit.
(b) Based on the equation from part (a), what is the predicted final exam score if the average quiz score is 80? Show all work and justify your answer.
