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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.

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Solution Summary

The three month moving average and MAD are calculated

Solution Preview

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

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