Chapter 14 Q3. I got this answer wrong. I need help including how to enter the formula including finding the numbers.

Classified ads in a newspaper offered for sale 19 used cars of the same make and model. The output of a regression analysis is given. Assume all conditions for regression have been satisfied. Create a 95% confidence interval for the slope of the regression line and explain what your interval means in context. Coeff. SE t-Stat y-Int. 13073 587.41 22.255 Age - 756 88.68 -8.525 Find the 95% confidence interval for the slope. The confidence interval is ( -943.10 , - 568.90 ). (Round to two decimal places as needed.) What does the 95% confidence interval mean in context? A. It can be said with 95% confidence that next year, the price of each used car will have changed by an amount contained in the interval. B. It can be said with 95% confidence that the interval contains the true rate at which the price of a used car changes in relation to its age. O C. The true rate at which the price of a used car changes in relation to its age is between the endpoints of the confidence interval 95% of the time