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测量系统线性分析数据表NO.版号:A修订号:1表格编号:-R-QC4.11-12量具名称:基准件名称:测量日期:量具编号:测量参数:测量人员:量具类型:参数规格:零件试验次数基准值零件均值偏倚极差n1234567891013.283.253.213.123.243.223.283.143.253.303.2003.22900.02900.18023.263.263.223.143.243.203.283.153.263.333.2003.23300.03300.18533.303.283.223.123.253.223.253.153.283.353.2003.24130.04130.23243.263.223.243.143.243.243.253.153.253.353.2003.23400.03400.21053.293.243.223.153.223.223.323.123.293.363.2003.24300.04300.240偏倚与基准值的散布图如右图所示,最佳拟合这些点的线性回归直线为:y=b+axy=0.011x+0.000线性图式中x=基准值;y=偏倚;a=斜率0.0010R²=9E-15∑xy-(∑x(∑y)/n)a=0.0000000.0005∑x2-(∑x)2/n倚b=∑(y/n)-a×∑(x/n)=0.0361偏0.00000102030405060702回归直线的拟合优度(R)计算如下:-0.0005[∑xy-∑x(∑y)/n]2R2=0.0000[∑x2-(∑x)2/n]×[∑y2-(∑y)2/n]-0.0010