Given the Following fiVe Points: (-2,0), (-1,0), (0,1), (1,1), and (2,3)

Given the following five points: (-2,0) , (-1,0) , (0,1) , (1,1) , and (2,3) .
What is the critical value necessary to determine a confidence interval for a 90% level of
Confidence?

A) 1.533
B) 1.638
C) 2.132
D) 2.353