试题与答案

某电脑专卖店2002年1~12月电脑销售量如表4-4所示。 表4-4 某电脑专

题型:问答题

题目:

某电脑专卖店2002年1~12月电脑销售量如表4-4所示。
表4-4 某电脑专卖店2002年电脑销售量表

时间序号(t)实际销售量xi(台)时间序号(t)实际销售量xi(台)
2002.11602002.7748
2002.22532002.8865
2002.33442002.9969
2002.44302002.101052
2002.55562002.111146
2002.66512002.121272
【问题】 请用简单移动平均法预测2003年第一季度电脑销售量(分别取n=3和n=6,并通过比较两个方法预测误差来选择较好方法)。

答案:

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答案:A

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