entry-level jobs . 8. Ranching: Cattle You are the foreman of the Bar-s cattle ranch in Colorado A neighboring ranch has calves for sale, and you are going to buy some to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms) The following information is based on data taken from The Merck Veterinam Manual (a reference used by many ranchers). W 10 16 26 36 42 50 75 100 150 200 Complete parts (a) through (e), given Ex = 92, Zy = 617, Ex- = 2338. Zy' = 82,389, Exy = 13,642, and r ~ 0.998. (f) The calves you want to buy are 12 weeks old. What does the least-squares line predict for a healthy weight