试用一元线性回归分析法预测今年电焊条需求总量

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一、1982年电焊条的需求趋势预测电焊条产品国内市场需求量,今年将出现回升,预测全国使用量约为二十万吨左右。销售情况是比较乐观的,其原因主要是:1.1982年工农业总产值将提高4%以上,机械工业产值要比去年上升。2.钢产量指标与去年计划数相比,有3%的增长。3.用电焊条较多的造船工业,今年造船 First, the demand trend of welding electrodes in 1982 The domestic market demand for welding electrode products, there will be a rebound this year, the estimated use of about 200,000 tons nationwide. The sales situation is more optimistic. The reasons are mainly as follows: 1. In 1982, the gross output value of industry and agriculture will increase by more than 4%, and the output value of machinery industry will be higher than that of last year. 2. The steel production target is 3% higher than last year’s plan. 3 with more welding electrode shipbuilding industry, shipbuilding this year
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