Tea sub packaging

By controlling the sub packaging process, the average weight of each package of tea is 100.6 g. according to the sub packaging process, it is assumed that the standard deviation of the feeding process is 1.4 G.

The selected groups collect 5 groups every day for 25 days. The data are as follows:

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