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A pizza delivery vendor has a goal of delivering all orders within 50 minutes. A sample was taken and found a mean of 40 minutes

A pizza delivery vendor has a goal of delivering all orders within 50 minutes. A sample was taken and found a mean of 40 minutes and a sample standard deviation of 6 minutes.

Assuming the distribution is normal, what percent of the population did not meet the goal of 50 minutes?

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