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9. The customer wait times for oil changes at Al's Autos are Normally distributed, with a mean of 39 minutes and a standard deviation of

9. The customer wait times for oil changes at Al's Autos are Normally distributed, with a mean of 39 minutes and a standard deviation of 2.8 minutes. Approximately what percentage of Al's customers must wait longer than 43 minutes for their oil change? A. Less than 5% B. 8.08% C. 13.57% D. 24.20% E. More than 30%

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