Question

You are given the following information about x and y.

x y
Independent Dependent
Variable Variable
4 12
6 3
2 7
4 6

The least squares estimate of b1 equals _____.

a. 1
b. –11
c. 11
d. –1

Answer 1

Plot the points on the graphing calculator. Then generate a linear regression model.

y = -x + 11, so m = -1, and b = 11.

The correct answer is C.