Question: Refer to problem 14.27. Suppose, when testing for the appropriateness of the fitted model, the standard deviations are: Sa1 5 0.90 Sa2 5 0.35 Sa3

Refer to problem 14.27. Suppose, when testing for the appropriateness of the fitted model, the standard deviations are:

Sa1 5 0.90 Sa2 5 0.35 Sa3 5 0.2

a. What conclusions can you make?

b. Discuss how to proceed if forecasting is still your main objective.

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