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    Time series analysis : Seasonal index

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    Ratio to moving average method
    An analyst wants to use the ratio-to-moving average method to forecast a company's sales for the next few quarters. Beginning in Quarter 4 of 2005, the analyst collects the following sales data (in millions of dollars).
    Estimate the seasonal index associated with Quarter 3. Round your answer to at least three decimal places.

    keywords: averages, moving-average

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    Solution Summary

    The solution provides step by step method for the calculation of seasonal index . Formula for the calculation and Interpretations of the results are also included.