Determining the estimated regression line

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Yield = 4.85 + .05(Fertilizer) Which of the following is not correct? The yield of a grain, Y, appears to be linearly related to the amount of fertilizer applied, X. An experiment was conducted by applying different amounts of fertilizer (0 to 10 kg/ha) to plots of land and measuring the resulting yields. The following estimated regression line was obtained:

a. If no fertilizer was used, the yield is estimated to be 4.85.

b. For every additional kg/ha of fertilizer applied, the yield is estimated to increase by 0.05

c. To obtain an estimated yield of 5.2, you need to apply 7.0 of fertilizer.

d. If the current level of fertilizer is changed from 7.0 to 9.0, the yield is estimated to increase by 0.20.

Reference no: EM132927689

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