You are given the following information about y and x Y17211

You are given the following information about y and x. Y=17,21,18,17,27
X=2,2,2,1,3

Refer to Exhibit 14-7. Find Sb1 or the standard error for the slope

Solution

1.91

formula used is

SE = s_b1 = sqrt [ ?(y_i - ?_i)² / (n - 2) ] / sqrt [ ?(x_i - x)² ]