Based on the study workload analysis, data was obtained on the existence of a group of machines / production facilities consisting of 5 (machines) production machines / facilities and so far, served / controlled by 1 (one) operator. Probability that the machine can operate without requiring the presence of an operator 0.67; and the probability of machines requiring the presence of an operator --- in particular for loading / unloading activities, pressing the on / off button, and / or other manual activity (service) --- is 0.33. a. Make a calculation analysis to find out how many estimated working hours are lost due to unmanaged machine downtime per work shift (8 hours / day - outside of break time). b. Management has the following alternatives: - Alternative 1 maintains the current state - Alternative 2 increases the workforce to 2 (two) operators with a fixed number of machines - Alternative 3 reduces the number of machines to 4 (four) with a fixed number of workers. Which alternative is better for management to take? ----