【正文】 漏檢率 ： 9/96 = % 錯(cuò)檢率 ： 1/4 = 25% 抽樣檢驗(yàn) 抽樣方法 抽樣檢驗(yàn)分類 計(jì)數(shù)抽樣檢驗(yàn)方案 抽樣方法 無偏好原則： 應(yīng)用隨即抽樣來抽取樣本 簡單隨機(jī)抽樣 指從一批產(chǎn)品（ N件 ）中 任意地 抽取n件 （每一件產(chǎn)品被抽取的可能性是相等的） 例如 ： 摸獎(jiǎng)（獎(jiǎng)盒密閉，獎(jiǎng)票特性相同） 搖獎(jiǎng)（機(jī)械操作，獎(jiǎng)球特性相同） ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 系統(tǒng)抽樣 每隔一段時(shí)間或一定編號(hào)進(jìn)行，而每一次又是從一定時(shí)間間隔生產(chǎn)出的產(chǎn)品或一段序號(hào)產(chǎn)品中任意抽取樣本。為了做到及時(shí)性，就要精心安排，嚴(yán)格執(zhí)行檢測(cè)計(jì)劃，做好檢測(cè)過程各項(xiàng)準(zhǔn)備工作，使檢測(cè)工作能高效有序地進(jìn)行。 按檢驗(yàn)實(shí)施方分類 （ 1） 第一方檢驗(yàn) （ 生產(chǎn)方檢驗(yàn) ）：指生產(chǎn)企業(yè)為了及時(shí)發(fā)現(xiàn)生產(chǎn)中的不合格品，不使其流入下道工序，確保出場(chǎng)產(chǎn)品質(zhì)量符合要求而實(shí)施的檢驗(yàn)。 抽樣檢驗(yàn)是一種 廣泛采用 的檢驗(yàn)方法，適用于下列場(chǎng)合： A. 需做 破壞性檢驗(yàn) 、不可能采取全數(shù)檢驗(yàn)的場(chǎng)合； B. 檢驗(yàn)對(duì)象為 流程性產(chǎn)品 ，如帶鋼、電線、紙張、布匹； C. 產(chǎn)品 數(shù)量大 并允許有某種程度的不合格品混入的場(chǎng)合，如標(biāo)準(zhǔn)件中的螺釘、螺帽等；