Question
x 2 5 11 16 26 36 y 42 52 79 100 150 200 Σx =...
| x | 2 | 5 | 11 | 16 | 26 | 36 |
| y | 42 | 52 | 79 | 100 | 150 | 200 |
Σx = 96
Σy = 623
Σx2 = 2378
. Σy2 = 83209
Σxy =13913
r = .999
(c) Find x, and y. Then find the equation of the least-squares line y hat = 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 hat =
(d) The calves you want to buy are 14 weeks old. What does the least-squares line predict for a healthy weight? (Round your answer to two decimal places.)
________kg
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