If the Model Y_t = T_t × S_t × I_t

question 125

Multiple Choice

If the model y_t = T_t × S_t × I_t is applied, which of the following indicates no seasonality?

• A) The sum of the adjusted seasonal indices equals the number of seasons.
• B) The average of the adjusted seasonal indices equals 1.
• C) Every adjusted seasonal index is practically 1.
• D) The product of the adjusted seasonal indices equals 1.

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