In a standard 6-day period, the production department programme a specific machine to work for 250 hours- its loading time.
Changeovers and set-ups take average of 8 hours and breakdown failures average 3 hours every 6 days.
The time when the machine cannot work because it is waiting for material to be delivered from other parts of the process is 1 hour on average and during the period when the machine is running, it averages 92 per cent of its rated speed.
Two per cent of the parts processed by the machine are subsequently found to be defective in some way.
Based on above data, calculate overall equipment effectiveness (OEE)