A Manufacturer Produces Walkman Tap Players/radios

Short Answer

A manufacturer produces Walkman tap players/radios.The electronic components are positioned in the outer case after the case has been given an epoxy finish.The production manager must time the drying process with the total assembly line and therefore must determine the appropriate drying time.An intensive cost analysis indicated that a risk of just 0.3% of the cases being wet and therefore smudged was acceptable.If drying times are normally distributed with a mean of 3.6 minutes and a standard deviation of 0.6 minutes,what time setting should the production manager set for the automatic timer which controls the production line?
____________________ minutes