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Use the Data Given Below to Answer the Following Questions)

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Use the data given below to answer the following questions) .
The table below provides the sales data for JD Inc. for the year 1998. Given: α = 0.2, β = 0.15, and γ = 0.05 Hint: Use an additive Holt-Winters model.)  Umbrella Sales of JD Inc.  Year  Month  Units 1 Jan 39801 Feb 40001 Mar 47401 April 47201 May 49201 Jul 51401 July 46401 Aug 45201 Sep 44801 Oct 46901 Nov 42101 Dec 44182 Jan 43802 Feb 44002 Mar 51402 April 51202 May 53202 JuI 55402 July 50402 Aug 49202 sep 48802 Oct 50902 Nov 46102 Dec 4818\begin{array}{l}\text { Umbrella Sales of JD Inc. }\\\begin{array} { | c | c | c| } \hline \text { Year } & \text { Month } & \text { Units } \\\hline 1 & \text { Jan } & 3980 \\\hline 1 & \text { Feb } & 4000 \\\hline 1 & \text { Mar } & 4740 \\\hline 1 & \text { April } & 4720 \\\hline 1 & \text { May } & 4920 \\\hline 1 & \text { Jul } & 5140 \\\hline 1 & \text { July } & 4640 \\\hline 1 & \text { Aug } & 4520 \\\hline 1 & \text { Sep } & 4480 \\\hline 1 & \text { Oct } & 4690 \\\hline 1 & \text { Nov } & 4210 \\\hline 1 & \text { Dec } & 4418 \\\hline 2 & \text { Jan } & 4380 \\\hline 2 & \text { Feb } & 4400 \\\hline 2 & \text { Mar } & 5140 \\\hline 2 & \text { April } & 5120 \\\hline 2 & \text { May } & 5320 \\\hline 2 & \text { JuI } & 5540 \\\hline 2 & \text { July } & 5040 \\\hline 2 & \text { Aug } & 4920 \\\hline 2 & \text { sep } & 4880 \\\hline 2 & \text { Oct } & 5090 \\\hline 2 & \text { Nov } & 4610 \\\hline 2 & \text { Dec } & 4818 \\\hline\end{array}\end{array}
-What is the value of the mean absolute deviation for the given data?

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Definitions:

Registered Bonds

Registered bonds are securities that are recorded in the name of the holder on the issuing company's books, ensuring that interest payments are made to the registered owner.

Finance Leases

Leasing agreements that transfer substantially all risks and rewards of ownership of the asset from the lessor to the lessee.

Contractual Agreement

A legally binding contract specifying the terms and conditions under which parties agree to perform certain actions.

Note Principal

The original amount of money borrowed or the amount still owed on a loan, separate from interest.

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