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    Automobile Battery Sales

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    For the data below
    Month Automobile Battery Sales Month Automobile Battery Sales
    January 20 July 17
    February 21 August 18
    March 15 September 20
    April 14 October 20
    May 13 November 21
    June 16 December 23

    (a) Develop a three-month moving average. (b) Compute MAD.

    © BrainMass Inc. brainmass.com October 10, 2019, 5:03 am ad1c9bdddf
    https://brainmass.com/math/fractions-and-percentages/automobile-battery-sales-490759

    Solution Preview

    So the three month moving average is given in column B, it is the average for 3 months at a time. ...

    Solution Summary

    The three month moving average and MAD are calculated

    $2.19