A Seasonal Index for a Monthly Series Is About to Be

question 54

Essay

A seasonal index for a monthly series is about to be calculated on the basis of three years' accumulation of data. The three previous July values were 110, 135, and 130. The average over all months is 160. The approximate seasonal index for July is:

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Definitions:

Atkinson and Shiffrin

Psychologists who proposed a model of memory in the 1960s, known as the multi-store or modal model, which includes the sensory register, short-term memory, and long-term memory.

Memory Storage

Memory Storage is the process of retaining information in the brain over time through the encoding, storage, and retrieval of experiences and learned information.

Conscious Experience

The subjective awareness of one's thoughts, feelings, and surroundings.

Working Memory

A cognitive system that holds information temporarily available for processing and manipulation; crucial for reasoning and guidance of decision-making and behavior.