Which of the Following Is Not a Necessary Step to Estimate

question 26

Multiple Choice

Which of the following is not a necessary step to estimate the three parameters-level,trend,and seasonal factors of the systematic component of demand?

• A) Deseasonalize demand and run linear regression to estimate level and trend.
• B) Estimate seasonal factors.
• C) Remove the trend factor of demand and run linear regression to estimate seasonal factors.
• D) All of the above are steps.
• E) None of the above are steps.

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