Explore BrainMass

Fertilizer and Yield - Correlation and Regression

The following data show levels of fertilizer use (lbs) and wheat yield (bushels) on repeated trials on a six acre plot.
1. Find the correlation between the two variables
2. Find the regression equation that relates the variables
3. What yield would you expect from the application of 90 lbs. of fertilizer?

FERTILIZER(lbs.) YIELD(bushels)
110 44
135 50
85 28
95 33
115 41
70 25

Solution Summary

Neat, Step-by-step solutions to all the parts of the question. Includes Scatter plot and Regression graph.