4 25 points eBook. Print References Problem 7-19 (Algo) A cafeteria serving line has a coffee urn from which customers serve themselves. Arrivals at the urn follow a Poisson distribution at the rate of 3.0 per minute. In serving themselves, customers take about 17 seconds, exponentially distributed. a. How many customers would you expect to see, on average, at the coffee urn? Note: Do not round intermediate calculations. Round your answer to 2 decimal places. Average number of customers b. How long would you expect it to take to get a cup of coffee? Note: Round your answer to 2 decimal places. Expected time c. What percentage of time is the urn being used? Note: Do not round intermediate calculations. Round your answer to 1 decimal place. Percentage of time minute(s) % Check my work

A caleterla serving tine hos a colfee urn trom which customers serve bemselves. Artivals at the urn follow a Poisson diseibution at the a. How muny cantomers would you expect to see, on average; at the coffec ian? Note: Do not round intermediore colculations. Round your answer to 2 decimal ploces: b. How long would you expect a to tahe to ged a cup of colfec? Note: Round your onswer to 2 decimal pinces. c. What percentage of tine is the uin being used? Note: Do not reund intermediote solculotions. Round your amwer to 1 decimnl piace. d. What is the probability that thee or more people are in the caletera? Note: Do not round intermediate calculations. Round your answer to 1 decimnl place. Would you expect to see at the collee urn puition and or pouring cotleel? Note: Do net round intermediese celculations. Round your hnswer to 2 decimal places. Note: Do not round interntedipte cniculntions. Pound your answer io 2 decimol ploces