You have calculated the following power model and associated unit space values:

Question

You have calculated the following power model and associated unit space values: [Image Description: n =7, Summation of (Y– Yhat)2 = 1285

Cost = 1.67(Weight)^0.895

As an alternative, you could use the linear equation Cost = 122.31 + 126.80(Weight) SE = 24.52

You would select the following:

a. Linear equation because it has a higher standard error than the power model.

b. Linear equation because it has a lower standard error than the power model.

c. Power equation because it has a lower standard error than the power model.

d. Power equation because it has a higher standard error than the power model.

Explanation / Answer

As an alternative, you could use the linear equation Cost = 122.31 + 126.80(Weight) SE = 24.52

b. Linear equation because it has a lower standard error than the power model.

linear equations is always the best options because it is the best equation with less error

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