2. Company A makes the same type of bicycle from three production facilities. if one distributor has found a bicycle that has not been properly assembled. The manager of company A want to know which  facilities is most likely to be responsible for this mistake. Provide the manager this information based on the following data (10%).                                                                                                          

facilities

Contribution to total

Proportion of defective

1

0.40

0.05

2

0.35

0.10

3

0.25

0.07

2. A 公司有三種不同設備生產同型的腳踏車，批發商發現不良品，A 公司的經理想知道究竟哪一種設備要承擔不良品較大的責任，以下資料:

設備

佔總產量比例

不良品比例

1

0.40

0.05

2

0.35

0.10

3

0.25

0.07

為了方便陳述，設備1=F1，設備2=F2，設備3=F3，不良品=D                             講解:李柏堅


我們直接從不良品中抓

顯然不良品來自設備2中產出的最多