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【简答题】
已知:某企业生产一种产品,2004年1~12月份的销售量资料如下表所示: 月份 1 2 3 4 5 6 7 8 9 10 11 12 销量(吨) 10 12 13 11 14 16 17 15 12 16 18 19 要求:分别按以下方法预测2005年1月份销售量。 (1)平滑指数法(假设2004年12月份销售量预测数为16吨,平滑指数为0.3); (2)修正的时间序列回归法。
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