British airways employs you as cunsultant to analyse the departure time of flight leaving Cape Town International Airport. The acceptance time frame for departures is 0 for on-time plus or minus 15 minutes. During a typical week the following flights departure times were recorded :- -5 ,15, 5, 7, 8, 0, 9, 6, 8, 10, 8, -6, 4, 13, -3
1. Calculate and evaluate the capability indexes to determine what it indicates about the departure times.
2. Bitish airways wants a Cpk value of 1.33. Calculate the new target departure time.
3. IF the pernalty of R1500.00 is imposed per late departure. Calculate the penalty paid by British airways for late departure per annum base on the data above.
4 What recommendation will you present to British airways management.