IE七大手法抽检法

,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,冠捷科技,#,单击此处编辑母版标题样式,IE,七大手法之,抽查法,From:,刘建鑫、,余兴标、周清腾、张元昌,Date,：,Jan.-20-10,冠捷科技,Contents,抽 查 法 简 介,一,L16,作业率抽查,二,办公室在座率抽查,三,健康睡眠抽查,四,一、抽查法简介,冠捷科技,在日常生活中,我们常应用到这种观察少数的结果来推测群体的状况。,被观察的少数个体,我们称之为“样本”,而被推测的整体结果之过程,我们称之为“抽样”,.,工作抽查就是以抽样的方式,来从事调查推测群体的事实状况,.,参 数 定 义,一,、抽查法简介,冠捷科技,1,、可靠度：观测结果的可信度，指子样符合总体状态的程度。一般设为,95%,。,2,、精确度：允许的误差，分为绝对精度,E,和相对精度,S,。,E=2,=2*,SQRT(P*(1-P)/n,（,P,为作业率，,n,为观测次数）,观测次数：,n=4*P*,（,1-P,）,/,（,E*E,）,应用范围,可适用于工厂、办公室、商店、医院、银行以及政府行政机构等。,办公室人员工作时间所占之百分率,.,机器设备之维修百分率或停机百分率,.,现场操作人员从事有生产性工作之百分率,.,冠捷科技,一,、抽查法简介,实地观测,数据整理与分析,冠捷科技,步 骤,明确观测目的,明确目的、项目分类,说明情况、观测瞬时状态,剔除异常值、改进工作,观测规划,路径、数据表、时刻表,冠捷科技,观测起点,8:06,8:18,8:20,间隔,(,分钟,),30,30,30,1,8:06,8:18,8:20,2,8:36,8:48,8:50,3,9:06,9:18,9:20,4,9:36,9:48,9:50,5,10:06,10:18,10:20,6,10:36,10:48,10:50,7,11:06,11:18,11:20,8,11:36,11:48,11:50,9,12:06,12:18,12:20,10,12:36,12:48,12:50,11,13:06,13:18,13:20,12,13:36,13:48,13:50,13,14:06,14:18,14:20,14,14:36,14:48,14:50,15,15:06,15:18,15:20,16,15:36,15:48,15:50,17,16:06,16:18,16:20,18,16:36,16:48,16:50,19,17:06,17:18,17:20,20,17:36,17:48,17:50,时刻表,序号,二、,L16 L1900P,作业率抽查,冠捷科技,观测登记表,日期：,2010-1-5,机种：,L1900P,线别：,L16,段别：前段,站序,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,站位,放,PANEL1,放,PANEL2,读,PANEL,条码,读板子条码,插,LVDS,盖铁盘,插灯管,PIN,锁付,PANEL1,锁付,PANEL2,贴铝箔,1,贴铝箔,2,上前框,上,KEPC,贴付铝箔,3,锁信六角螺丝,贴付铝箔,4,盖后壳,贴,ID,锁信号线,止卡夹,上支架,锁付支架,1,锁付支架,2,立机器,作业率,平均值,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,2,1,1,1,1,1,1,1,1,1,1,1,1,1,13,54.17%,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,14,58.33%,5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,14,58.33%,62.50%,计算观测次数,冠捷科技,试观测并计算观测次数,E=2,=2*,SQRT(P*(1-P)/N,N=4*P*（1-P）/（E*E）,可靠度,绝对精度,E,作业率,P,观测次数,N,95%,5%,62.50%,375,已观测：,120,再观测：,255,观测,登记表,日期：,2010-1-5,机种：,L1900P,线别：,L16,段别：前段,站序,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,站位,放,PANEL1,放,PANEL2,读,PANEL,条码,读板子条码,插,LVDS,盖铁盘,插灯管,PIN,锁付,PANEL1,锁付,PANEL2,贴铝箔,1,贴铝箔,2,上前框,上,KEPC,贴付铝箔,3,锁信六角螺丝,贴付铝箔,4,盖后壳,贴,ID,锁信号线,止卡夹,上支架,锁付支架,1,锁付支架,2,立机器,作业率,平均值,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,2,1,1,1,1,1,1,1,1,1,1,1,1,1,13,54.17%,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,14,58.33%,5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,14,58.33%,62.50%,6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,15,62.50%,7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,15,62.50%,9,1,1,1,1,1,1,1,1,1,1,1,1,1,1,14,58.33%,10,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,16,66.67%,11,1,1,1,1,1,1,1,1,1,1,1,1,1,13,54.17%,12,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,13,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,17,70.83%,14,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,20,83.33%,15,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,18,75.00%,16,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,18,75.00%,17,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,20,83.33%,18,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,16,66.67%,67.36%,追加观测并分析数据,冠捷科技,数据分析,作业率,67.36%,单组观测次数,24,3,0.2871,UCL,0.9607,LCL,0.3865,作业率,平均值,UCL,LCL,70.83%,0.9607,0.3865,54.17%,0.9607,0.3865,70.83%,0.9607,0.3865,58.33%,0.9607,0.3865,58.33%,62.50%,0.9607,0.3865,62.50%,0.9607,0.3865,70.83%,0.9607,0.3865,62.50%,0.9607,0.3865,58.33%,0.9607,0.3865,66.67%,0.9607,0.3865,54.17%,0.9607,0.3865,70.83%,0.9607,0.3865,70.83%,0.9607,0.3865,83.33%,0.9607,0.3865,75.00%,0.9607,0.3865,75.00%,0.9607,0.3865,83.33%,0.9607,0.3865,66.67%,67.36%,0.9607,0.3865,冠捷科技,实际精度计算,E=2,=2*,SQRT(P*(1-P)/N,N=4*P*（1-P）/（E*E）,可靠度,观测次数,N,作业率,P,绝对精度,E,95%,432,67.36%,4.51%,总结,L16 L1900P,机种的前段作业率有,95%,的可能性为,67.36%,，其误差为,4.51%,。,三、北厂办公室在座率抽查,冠捷科技,序号,在座人数,总人数,在座率,1,24,47,51.06%,2,24,47,51.06%,3,21,47,44.68%,4,31,47,65.96%,5,21,47,44.68%,6,19,47,40.43%,7,21,47,44.68%,试观测：,冠捷科技,观测次数计算,E=2,=2*,SQRT(P*(1-P)/N,N=4*P*（1-P）/（E*E）,可靠度,绝对精度,E,作业率,P,观测次数,N,95%,5%,48.94%,400,已观测次数,329,再观测次数,71,追加观测并分析数据,冠捷科技,序号,在座人数,总人数,在座率,1,24,47,51.06%,2,24,47,51.06%,3,21,47,44.68%,4,31,47,65.96%,5,21,47,44.68%,6,19,47,40.43%,7,21,47,44.68%,8,21,47,44.68%,9,21,47,44.68%,10,24,47,51.06%,11,18,47,38.30%,12,22,47,46.81%,冠捷科技,在座率,47.34%,观测次数,47,3,0.2185,UCL,0.6919,LCL,0.2549,序号,在座人数,总人数,在座率,UCL,LCL,平均值,1,24,47,51.06%,0.6919,0.2549,2,24,47,51.06%,0.6919,0.2549,3,21,47,44.68%,0.6919,0.2549,4,31,47,65.96%,0.6919,0.2549,5,21,47,44.68%,0.6919,0.2549,6,19,47,40.43%,0.6919,0.2549,7,21,47,44.68%,0.6919,0.2549,48.94%,8,21,47,44.68%,0.6919,0.2549,9,21,47,44.68%,0.6919,0.2549,10,24,47,51.06%,0.6919,0.2549,11,18,47,38.30%,0.6919,0.2549,12,22,47,46.81%,0.6919,0.2549,47.34%,冠捷科技,E=2,=2*,SQRT(P*(1-P)/N,N=4*P*（1-P）/（E*E）,可靠度,观测次数,N,在座率,P,绝对精度,E,95%,564,47.34%,4.20%,总结,关于北厂工程师在座位办公的比例为,49.57%,，其可靠度为,95%,，精度为,4.2%,。,四、健康抽查,冠捷科技,序号,比率,平均值,1,2,3,4,5,登记表,姓名：,日期：,星期一,星期二,星期三,星期四,星期五,星期六,星期日,最佳睡眠率,晚上睡觉时间,早上起床时间,冠捷科技,最佳答案,:,每天能够在,十点半,左右睡觉是最好的，大概睡,早上六点,起来就很好了。你的皮肤在十点半以后到两点是最需要休息的，也是它的更新时间段。,健康抽查,问：成年人最佳睡眠时间段是多久,?,冠捷科技,问：人最佳的睡眠时长是多少？,下是有关人体睡眠时间的数据：年龄睡眠时间 新生儿,20-22,小时,2,月婴儿,18-20,小时,1,岁,15,小时,2,岁,14,小时,3-4,岁,13,小时,5-7,岁,12,小时,8-12,岁,10,小时,12-18,岁,9,小时 成年人,7-8,小时,(,不宜少于,6,小时,),60-70,岁,9,小时,70-90,岁,10,小时,90,岁以上 不宜少于,10,小时,健康抽查,健康抽查,冠捷科技,结论,t,Thank You!,