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Modern medical practice tells us not to encourage babies to become too fat. Is there a positive correlation between the
Posted: Thu May 05, 2022 9:01 pm
by answerhappygod
- Modern Medical Practice Tells Us Not To Encourage Babies To Become Too Fat Is There A Positive Correlation Between The 1 (97.45 KiB) Viewed 28 times
Modern medical practice tells us not to encourage babies to become too fat. Is there a positive correlation between the weight x of a 1-year old baby and the weight y of the mature adult (30 years old)? A random sample of medical files produced the following information for 14 females. x (lb) 20 23 25 23 20 15 25 21 y (lb) 120 123 121 121 130 120 145 130 17 24 26 22 18 19 130 130 130 140 110 115 In this setting we have Ex= 298, Ey = 1765, Ex² = 6484, Ey² = 223,661, and Exy = 37,747. (a) Find x, y, b, and the equation of the least-squares line. (Round your answers for x and y to two decimal places. Round your answers for least-squares estimates to four decimal places.) x = 21.2857 y = 126.0714 b = 1.2617 ŷ= 2.1286 X 1.2617 Need 95% Confidence Interval Lower & Upper (g) Find a 95% confidence interval for weight at age 30 of a female who weighed 16 pounds at 1 year of age. (Round your answers to two decimal places.) lower limit 98.92 X lb upper limit 139.89 x lb