(b) Verify the given sums Ex, Ey, Ex², Ey², Ex y, and the value of the sample correlation coefficient r. (For each answer, enter a number. Round your value for r to three decimal places.) Ex = 15.833...

Extracted text: (b) Verify the given sums Ex, Ey, Ex², Ey², Ex y, and the value of the sample correlation coefficient r. (For each answer, enter a number. Round your value for r to three decimal places.) Ex = 15.833 Ey = 101.5 Ex? = 870.833 Ey? : 19745.5 Ex y = 4134.5 r = .997 (c) Find x, and y. Then find the equation of the least-squares line ŷ = a + b x. (For each answer, enter a number. Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) X = 4.7478 y = ŷ =


Extracted text: 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 calves 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). 11 16 26 36 y 39 47 73 100 150 200 Complete parts (a) through (e), given Ex = 95, Ey = 609, Ex² = 2375, Ey? = 81,559, Ex y = 13,777, and rz 0.997.