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Tax Pro provides tax-preparation software services to file taxes online. The company offers live expert help for premium customers and promises to connect a customer

Tax Pro provides tax-preparation software services to file taxes online. The company offers live expert help for premium customers and promises to connect a customer with an experienced tax professional to answer tax questions. If a tax professional is not available, the customer is notified and the request is placed in a separate call-back queue. The company has 6 experienced tax professionals on call to answer customer questions. During the peak season, they receive on average 20 customer requests per hour. It takes on average 12min for a tax professional to answer a customer question. Q9. What is the average inter-arrival time for customer requests in mins? [ Select ] Q10. What is the probability that a tax expert is not available and a customer request has to put in a call-back queue? [ Select ] Q11. On average, how many customer requests are answered immediately with live help? [ Select ] Q12. If Tax Pro wants to ensure that at least 95% of customer requests are connected to live experts immediately, how many additional tax experts do they need to hire? [ Select ]

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