Loan Processing times are being monitored at a local company. Samples of ten observations each have been taken, and the

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Loan Processing times are being monitored at a local company.Samples of ten observations each have been taken, and the resultsare listed. Using Factors from Table 10.2, determine lower andupper control limits for a a Range chart
Sample Number 1 2 3
------------- 79 74 80
------------- 77 76 80
------------- 75 75 79
------------- 65 73 76
------------- 79 79 73
------------- 73 70 75
------------- 83 81 69
------------- 75 70 78
------------- 61 63 71
------------- 72 65 75