Module 5, Problem 40

# Module 5, Problem 40 - monthly U.S retail sales data While...

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Unformatted text preview: monthly U.S. retail sales data. While retaining the final 6 months of observations for validation purposes, use the method of moving averages with a careful y chosen span to forecast U.S. retail sales in the next year. P02_37.xlsx, U.S. Retail Sales (in millions of dollars) Month_Year Total Jan-93 147,772 Feb-93 144,335 Mar-93 163,943 Apr-93 169,634 May-93 175,371 Jun-93 174,825 Jul-93 176,995 Aug-93 176,208 Sep-93 170,202 Oct-93 175,510 Nov-93 180,364 Dec-93 217,629 Jan-94 154,400 Feb-94 155,596 Mar-94 183,782 Apr-94 181,209 May-94 186,395 Jun-94 189,244 Jul-94 184,978 Aug-94 192,925 Sep-94 184,957 Oct-94 188,454 Nov-94 193,411 Dec-94 231,974 Jan-95 166,188 Feb-95 162,959 Mar-95 190,844 Apr-95 186,287 May-95 199,980 Jun-95 201,079 Jul-95 193,423 Aug-95 202,572 Sep-95 191,213 Oct-95 192,351 Nov-95 200,800 Dec-95 236,342 Jan-96 173,264 Feb-96 180,251 Mar-96 199,413 Apr-96 198,610 May-96 213,754 Jun-96 204,705 Jul-96 204,817 Aug-96 212,247 Sep-96 195,749 Oct-96 207,531 Nov-96 210,236 Dec-96...
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