Value of the mean absolute deviation

The table below provides a firm's sales. Given: ? = 0.2, ? = 0.15, and ? = 0.05 and placing the data into quarters.

a) Calculate the value of the mean absolute percentage error for the given data.

b) What is the value of the mean absolute deviation for the given data?

c) What will be the predicted sales for February of the next quarter?

Year Month Units
01 Jan 3980
01 Feb 4000
01 Mar 4740
01 April 4720
01 May 4920
01 Jun 5140
01 July 4640
01 Aug 4520
01 Sep 4480
01 Oct 4690
01 Nov 4210
01 Dec 4418

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Basic Statistics: Value of the mean absolute deviation
Reference No:- TGS0752957
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