费支出为因变量y,可支配收入为自变量x的回归方程,并对回归结果进行经济学理论意义检验和一级检验(α=5%),假定二级检验也通过,预测城镇居民人均可支配收入x0=6860时,城镇居民人均生活消费支出的点预测、区间预测(1-α=95%)。年份城镇居民人均可支配收入(元)城镇居民人均生活消费支出(元)1978343.40311.161979397.45355.051980436.19376.511981445.97406.871982467.95411.261983485.98433.091984545.04466.311985550.78501.461986627.32556.201987641.54565.891988626.09585.241989626.81551.971990680.28575.461991729.28622.431992799.81659.051993876.12716.751994950.63774.561995997.03822.7619961035.56837.8519971070.89867.8419981133.01903.5319991238.37975.5120001317.591047.8820011429.571105.3520021621.301268.1120031767.141357.0720041903.121449.1420052085.811577.4120062303.181701.5620072584.091871.8620082801.111993.4120093048.592174.6320103391.962388.5420113871.272688.0220124360.252956.42资料来源:《新中国60年统计资料汇编》、历年《中国统计年鉴》。表中的数据已用相应的物价指数进行调整,均为1978年为不变价。
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