I the Ratio-To-Moving Average Method Removes the Time Series Trend

question 20

Multiple Choice

i. The ratio-to-moving average method removes the time series trend component, resulting in 12 numbers that are called specific seasonals.
ii. For a quarterly time series, the initial step, using the ratio-to-moving average method, is to remove the seasonal components from the time series using a 3-month centered moving average)
iii. In the ratio-to-moving-average procedure, using the median or modified mean eliminates trend)

• A) (i), (ii) and (iii) are all correct statements
• B) (i) and (ii) are correct statements, but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (ii) is a correct statement, but (i) and (iii) are incorrect.

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Negative or harmful effects resulting from medication, treatment, or exposure to environmental substances.

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The psychological state of someone who is functioning at a satisfactory level of emotional and behavioral adjustment.

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A component of Sigmund Freud's psychoanalytic theory representing the moral conscience, part of the mind that internalizes societal rules and norms.

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