A machine is used to fill cans with flavored milk. A sample of cans are selected every hour and the weight of the can is obtained. Since the filling process is automated, it has very stable variability, and long experience indicates that $\sigma = 0.08$ oz. The individual observations for 16 hours of operation are shown in Table 2. The management is interested in detecting the small shift in process mean for a sample size 5. Choose an appropriate control chart, calculate the control limits and construct the control chart? (10+5=15 Marks)
Table 2
Sample No Mean
Sample No Mean
Weight of can (oz)
1
8.00
9
8.03
2
8.03
10
8.04
3
8.02
11
8.02
4
8.01
12
8.06
5
8.04
13
8.02
6
8.00
14
8.01
7
8.07
15
8.04
8
8.05
16
8.05