Concerning a Seasonal Index for Monthly Data, Which Statement Is

question 17

Multiple Choice

Concerning a seasonal index for monthly data, which statement is incorrect?

• A)A multiplicative index value of 1.000 indicates no seasonal deviation from trend.
• B)Additive indexes are adjusted so they always sum to 12.
• C)To make forecasts, we multiply the trend by each month's seasonal index.
• D)Seasonal indexes are obtained by the process called decomposition of a time series.

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Definitions:

Agreeableness

A personality trait that describes the extent to which a person is kind, cooperative, and sympathetic towards others.

Social Support

A network of family, friends, and peers that provides emotional, informational, and instrumental assistance.

Catastrophizing

A cognitive distortion that involves seeing an unfavorable outcome to an event and then seeing this outcome as the worst possible scenario.

Openness to Experience

A personality trait describing the extent of an individual's intellectual curiosity, creativity, and preference for novelty and variety.