Question: Given the regression equation Y = 100 + 21X a. What is the change in Y when X changes by +5? b. What is the

Given the regression equation
Y = 100 + 21X
a. What is the change in Y when X changes by +5?
b. What is the change in Y when X changes by -7?
c. What is the predicted value of Y when X = 14?
d. What is the predicted value of Y when X = 27?
e. Does this equation prove that a change in X causes a change in Y?

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