Questions attached..

3. + -/0.76 points BBUnderStat12 9.2.008. 0/100 Submissions Used My Notes + Ask Your Teacher calf (in kilograms). 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-5 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 37 50 10 79 16 26 36 100 150 200 Complete parts (a) through (e), given Ex = 91, Ey = 616, Ex2 = 2333, Ey2 = 82,610, Exy = 13,627, and / & 0.997. (a) Draw a scatter diagram displaying the data. f Get ADOBE FLASH PLAYER Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Verify the given sums Ex, Ey, Ex2, Ey?, Exy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Ex = Ey = Ex2 = Ey2 = Exy = r = (c) Find x, and y. Then find the equation of the least-squares line y = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) X = y = Y = (d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line. y 200 200 150 150 100 50 OL TITTIT O 10 20 X OL 30 40 10 20 30 40My Overview | Chegg.com X VA _ Exam 4 Review (9.1 - 9.2, 10.1-1 x + C D webassign.net/web/Student/Assignment-Responses/submit?pos=08dep=22460416&tags=autosave 1:: Apps h Welcome to The Hub M SIMnet - Keep IT SI.. Lu Liberty University Bb Module/Week 1 -- 1... Bb Module/Week 2 --.. VA BUSI 230, section B. New Tab Bb My Courses - Black.. G thunder nba accountCE Welcome - nice.com Beacon ... Exy = r = * = (c) Find x, and y. Then find the equation of the least-squares line y = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) V = V = (d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line. y y 200 200 150 150 100 50 TITTTTT OL 10 20 30 40 - X 10 20 30 40 y 200 200 150 150 100 50 10 20 30 40 10 20 30 40 (e) Find the value of the coefficient of determination . What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (Round your answer for 2 to three decimal places. Round your answers for the percentages to one decimal place.) 12 = explained % unexplained % (f) The calves you want to buy are 10 weeks old. What does the least-squares line predict for a healthy weight? (Round your answer to two decimal places.)