Customers’ establishing new bank accounts at the BSP bank in Suva are expected to average 10 minutes each. Numerous obse

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Customers’ establishing new bank accounts at the BSP bank in
Suva are expected to average 10 minutes each. Numerous observations
of these samples were taken, as presented below. From the sample
data given, construct the relevant control charts. Do the results
suggest that the process is in control? Why or why not? Explain
Sample 1
Sample 2
Sample 3
Sample 4
Sample 5
Sample 6
9.5
10.3
9.9
10.3
9.6
10.2
8.4
9.9
10.5
10.4
10.9
8.9
9.8
10.2
9.9
10.8
10.8
9.7
10.3
10.5
10.8
10.6
10.1
10.5