Possível solução para o erro "could not publish: error occurred while executing method"

Two mechanics are changing oil filters for the arriving customers. The service time has an Exponential distribution with mean 12 minutes for the first mechanic, and mean 3 minutes for the second mechanic. When you arrive to have your oil filter changed, your probability of being served by the faster mechanic is 0.8. Use simulation to generate 10000 service times and estimate the mean service time for you. Summarize your data with hist(x, probability = TRUE) and mean(x), where x is your simulated data. Add two vertical lines indicating the simulated mean and the theoretical mean. Comment on your findings.

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