It is known that the mean time taken for a taco delivery from a taco shop is 18.4 minutes and the standard deviation is 2.4 minutes. The taco shop wants to promote the business by guaranteeing a maximum waiting time for its cus- tomers. If a taco delivery is not serviced within that period, the customer will receive 42% discount on the charges. The company wants to limit this dis- count to at most 5% of the customers. What should the maximum guaranteed waiting time be?

MATLAB: An Introduction with Applications
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It is known that the mean time taken for a taco delivery from a taco shop is 18.4 minutes and the standard deviation is 2.4 minutes. The taco shop wants to promote the business by guaranteeing a maximum waiting time for its cus- tomers. If a taco delivery is not serviced within that period, the customer will receive 42% discount on the charges. The company wants to limit this dis- count to at most 5% of the customers. What should the maximum guaranteed waiting time be?

 

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