The Economist magazine described the problem a major bank in Nairobi had with loan defaults. Assume that the samples of size 5 for seven officials were selected, and the results tabulated. Official Loan Amount (in Sh.’000’) 12345 144.249.247.146.866.0 245.565.545.255.255.1 323.431.236.331.532.6 432.331.229.127.828.1 556.765.345.255.558.2 689.790.284.285.589.2 762.758.765.361.871.6 

Develop an -chart and an R-chart for the bank and comment on the size of loan granted by the seven bank officers.