Use the data presented in Question 1 and carry out the expansion method, introducing a variable that assumes that there is an interaction between the distance to the orchard (d) and the number of bees. Assume, then, that the regression equation is structured as follows:
Present the coefficients and the r2
value, and compare them with the results from
Question 1.
Introducing the new term into the equation, the regression is structured as follows:
The regression equation returned by this is given below:
The standard error is 403.1 and the r2
is .874. This is superior to the original regression equation,
but doesn’t perform as well as the equation with distance added directly into it.
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