Question: Briefing : The laboratory testing process for an intensive care unit is normally distributed with an average turnaround time of 10 minutes and a standard

Briefing: The laboratory testing process for an intensive care unit is normally distributed with an average turnaround time of 10 minutes and a standard deviation of 5 minutes. The upper acceptable limit requested by the intensive care unit for the laboratory testing process is 12 minutes.

Question: Suppose the intensive care unit wanted to get the probability of exceeding the upper acceptable limit lower than 12% by reducing the standard deviation of the testing process. Keeping the mean time at 10 minutes, what would be the standard deviation that would achieve this?

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