Use the 68-95-99

question 10

Multiple Choice

Use the 68-95-99.7 Rule to find probabilities or cutoff values.
-The time it takes to process phone orders in a small florist / gift shop is normally
Distributed with a mean of 6 minutes and a standard deviation of 1.24 minutes. What
Cutoff values would separate the 16% of orders that take the least time to process?

• A) 3.52 minutes
• B) 4.76 minutes
• C) 8.48 minutes
• D) 10.01 minutes
• E) 11.98 minutes

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