Final answer:
Service standard times are related to the efficient operation of a restaurant or similar service business. The question examines average wait times and probabilities that factor into the delivery of services. Accurate calculations of these times are crucial for customer satisfaction and restaurant efficiency.
Step-by-step explanation:
The question concerns service standard times in a restaurant or hospitality setting. The details provided are related to the calculation of average times between events, such as the arrival of customers or the delivery of services like food and drinks. These calculations are essential for the management of staff, customer expectations, and the overall efficiency of a restaurant's operation.
- On average, it would take six minutes for three customers to arrive if one customer arrives every two minutes.
- The probability that a person must wait at least 1.5 more hours past noon on a delivery day is given as 1, which might be incorrect and should be revisited for the correct probability calculation.
- For pizza delivery times with a standard deviation of 6 minutes and a sample mean of 36 minutes, a 90 percent confidence interval can be computed for the population mean delivery time, using different sample sizes to change the confidence interval estimate.
Understanding these service standard times aids in optimizing the customer experience, which can lead to increased satisfaction and better business performance.