Question

In: Statistics and Probability

Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters...

Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 12 calls per hour. The arrival rate is 20 calls per hour.

  1. How many extension lines should be used if the company wants to handle 90% of the calls immediately?


  2. What is the probability that a call will receive a busy signal if your recommendation in part (a) is used? If required, round your answer to four decimal places.


  3. What number of calls, in decimal form, receive a busy signal for the current telephone system with two extension lines? If required, round your answer to four decimal places.

Solutions

Expert Solution

thank you

please upvote

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 15 calls per hour. The arrival rate is 30 calls per hour. How...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 10 calls per hour. The arrival rate is 16 calls per hour. What...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 10 calls per hour. The arrival rate is 16 calls per hour. What...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters...
Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 11 calls per hour. The arrival rate is 22 calls per hour. How...
Problem 11-31 (Algorithmic) Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number...
Problem 11-31 (Algorithmic) Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 11 calls per hour. The arrival rate is 22 calls...
Problem 15-31 (Algorithmic) Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number...
Problem 15-31 (Algorithmic) Mid-West Publishing Company publishes college textbooks. The company operates an 800 telephone number whereby potential adopters can ask questions about forthcoming texts, request examination copies of texts, and place orders. Currently, two extension lines are used, with two representatives handling the telephone inquiries. Calls occurring when both extension lines are being used receive a busy signal; no waiting is allowed. Each representative can accommodate an average of 9 calls per hour. The arrival rate is 17 calls...
Martinez Publishing Co. publishes college textbooks that are sold to bookstores on the following terms. Each...
Martinez Publishing Co. publishes college textbooks that are sold to bookstores on the following terms. Each title has a fixed wholesale price, terms f.o.b. shipping point, and payment is due 60 days after shipment. The retailer may return a maximum of 30% of an order at the retailer’s expense. Sales are made only to retailers who have good credit ratings. Past experience indicates that the normal return rate is 12%. The costs of recovery are expected to be immaterial, and...
Nathan Publishing Company specializes in printing specialty textbooks for a small but profitable college market. Due...
Nathan Publishing Company specializes in printing specialty textbooks for a small but profitable college market. Due to the high setup costs for each batch printed, Jo Nathan holds the book requests until demand for a book is approximately 500. At that point Jo Nathan will schedule the setup and production of the book. For rush orders, Jo Nathan will produce smaller batches for an additional charge of $700 per setup. Static-budget number of setups, 400. Budgeted and actual costs for...
A publishing company has just published a new college textbook, Before the company decides the price at which to sell the textbook, it wants to know the average price of all such textbooks in the market.
A publishing company has just published a new college textbook, Before the company decides the price at which to sell the textbook, it wants to know the average price of all such textbooks in the market. The research department at the company took a random sample of 36 comparable textbooks and collected information on their prices. This information produced a mean price of $145 and standard deviation 35 for this sample. An advertisement for a book store said the average...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT