茶叶分装

茶叶生产通过控制分装过程，使每包茶叶的平均重量为100.6 g ，根据的分装过程，假定给过程的标准差为1.4 g。

选定组的每天采集 5 组，共 25 天，数据如下：

99.2	100.1	99.8	99.5
101.2	100.5	99	98.9
101.7	100.2	100.5	99.2
101	99.9	101.6	100.9
101.3	102.5	100.2	100.7
99.5	99.6	101.6	102.3
100.2	99.6	100.2	98.9
100.1	100.5	100.3	100.8
99.1	99.6	99.8	99.9
99.6	101.3	101.6	100.8
99.7	101.6	101.5	100.3
100.5	100.9	101.2	99.1
100.2	101.1	100.8	99.3
101.5	101.8	100.1	100.2
100.8	99.9	99.8	99.9
101.2	100.3	98.9	99.6
101.9	101.1	100.2	99.8
101.2	100	101.2	101.2
99.2	98.8	100.1	102.3
100.2	100	100.3	102.1
100.5	99.5	99.6	100.2
100.2	101.2	101.8	100.9
101.2	101.8	101.7	99.3
101.2	101.8	99.3	99.8
99.3	100.1	100.4	101.8