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    Question

    Which option is incorrect for the component of ti.me series.

    A A non-seasonal cycle is a repetitive, possibly unpredictable, pattern in the series values Correct Answer Incorrect Answer
    B A trend is a gradual upward or downward shift in the level of the series Correct Answer Incorrect Answer
    C A sudden temporary shift is referred as pulse Correct Answer Incorrect Answer
    D Shifts in the level of a time series that cannot be explained are referred to as seasonal cycles Correct Answer Incorrect Answer

    Solution

    The correct answer is D

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