I got i'll, show another set of formulas that i actually like better than these, especially especially, if we disn'tworkwan the ones. Y hat equals a plus b x, where b is your sloop and the formulas are here. We want to find the least square regression line and we want to write it. Squared- and this is the sum of x in 2325- and then there we go so you do the substitutions into this formula. So i noticed that this is taking that 95. You'Ve got the square root with all this stuff, underneath it and then there's these are parentheses here, so just be war, so you've got n times the sum of x, squared minus the sum of the x is squared. Let me clear this out here we go and then numerator just be careful with that. That'S your numerator! Just careful of your order of operations and then to denominator same thing, careful with your order of operations, this bigger force, the words are less the less important than the king in the data herehe, you go hope we got a little easier for us to see. Some of x is timpson y negative, 5 times 69 point. It'S not state it here that the sum of those products right here so n times that 13777 minus the sum of these of x times some of ye. I use this formula there's a lot of stuff going on in here. Now we want to find in the sample correlation coefficient r. This is the sum of the x y values x times y values, all right, so we're good to go there. This is the sum of the is here 9 and then somebody, this number 95 point, and then right here. This column is some together that so this is the sum of the x squared. Then they check out with what you're given here, that's all good, and so i i took the spread you take your x values you square each 1. I actualized questions and but will go through what i did and how i did it to answer these questions now were given some data on the age of a calf and the weight of the corresponding calf, and that's what we have here and were also given the Sums of x times y some of x square, some of y squared its approximate x and y, we're told to verify it and when you have a spread sheet verifying it is super nice and easy and also thorough. 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).Īll right so were so. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. You are the foreman of the Bar-S cattle ranch in Colorado. Round your answer to two decimal places.) What does the least-squares line predict for a healthy weight (in kg)? (Enter a number. The calves you want to buy are 17 weeks old. Round your answers for the percentages to one decimal place.) Round your answer for r2 to three decimal places. 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? (For each answer, enter a number. = value of a coefficient + value of b coefficient xįind the value of the coefficient of determination r2. Round your answers for a and b to three decimal places.) Round your answers for and to two decimal places. Then find the equation of the least-squares line = a + b x. Round your value for r to three decimal places.)įind, and. Verify the given sums Σx, Σy, Σx2, Σy2, Σx y, and the value of the sample correlation coefficient r. 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). Refer to calendar for dates April-May (Spring) September (Fall).SOLVED: You are the foreman of the Bar-S cattle ranch in Colorado. Fall hunting starts beginning of September through end of September. Dates vary, Spring hunting starts at the end of April and runs through the beginning of May. Turkey hunting includes a Spring and Fall season. Refer to the calendar for actual dates, which vary year to year August through November. Our hunts include archery, 1st rifle, 2nd rifle, 3rd rifle and 4th rifle. Our hunting area is 521 and we have 7000 acres of private property and 10,000 acres public to hunt. Fly rods available for rent.īig game at the Bar ZX Ranch include elk, deer and bear. Dates may vary but generally the ice is gone around May 1st and we close around October 1st. No fishing after dark and please no waders in the ponds. It is all catch and release fishing and you can book a trip for up to 8 hours. There are 17 species of trout, including some beautiful hybrids. Our fly fishing adventures take place in the mountains at 7200 ft to 7600 ft, on still water ponds. Find an amazing adventure with us today! Please call, email, or message for pricing. Whether you are a seasoned angler or have never picked up a fly rod before, the Bar ZX Ranch has much to offer.
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