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

Question

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

As an alternatice, you could use the linear equation:

Cost = 122.31 + 126.80(Weight) SE = 24.52

You would select the:

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

Explanation / Answer

You would select the:

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

Se of linear = 24.52

Se of power = 1285 / 7 = 183.57

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