Use the Following Information for Questions:
a Sample of 19

Multiple Choice

Use the following information for questions:
A sample of 19 female bears was measured for chest girth (y) and neck girth (x) , both in inches. The least squares regression equation relating the two variables is $\hat{y}$ = 5.32 + 1.53 x. The standard deviation of the regression is s = 3.692.
-What is a 95% confidence interval for the average (or mean) chest girth for bears with a neck girth of 18 inches? The standard error of the fit, s.e.(fit) , = 0.860.

A) (24.9, 40.9)
B) (28.1, 43.7)
C) (31.0, 34.7)
D) None of the above