a) To calculate: The least squares regression line for the data points using the table given below. begin{array}{|c|c|} hline Fertilizer & x & 100 & 1

Joni Kenny

Joni Kenny

Answered question

2021-03-18

a) To calculate: The least squares regression line for the data points using the table given below. Fertilizerx100150200250Yieldy35445056 b)To calculate: The approximate yield when 175 pounds of fertizers were used per acre of land.

Answer & Explanation

Derrick

Derrick

Skilled2021-03-19Added 94 answers

Calculation: The regression quation can be obtained using Maple. Maple Command: restart: with(plots): with(CurveFitting): with(Statistic):
a=[100, 150, 200, 250]:
b=[35, 44, 50, 56]:
q=evalf(LeastSquares(a, b, x)), 22.10000000 + 0.1380000000 x This implies that the regression equation is y=0.138x + 22.1 b) The regression equation is y=0.138x + 22.1 Substitute for x in the model to obtain the desired value. y=0.138x + 22.1
=0.138(175) + 22.1
=24.15 + 22.1
=46.25

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