Mathematics, 04.07.2020 22:01 Yoma321
During tax season, the IRS hires seasonal workers to help answer the questions of taxpayers who call a special 800 telephone number for tax information. Suppose that calls to this line occur at a rate of 60 per hour and follow a Poisson distribution. The IRS workers manning the phone lines can answer an average of 5 calls per hour with the actual service times following an exponential distribution. Assume that 10 IRS workers are available and, when they are all busy, the phone system can keep 5 additional callers on hold. a. What is the probability that a caller receives a busy signal?b. What is the probability that a caller is put on hold before receiving service?c. On average, how long must a caller wait before speaking with an IRS agent?d. How many additional workers would be required if the IRS wants no more than a 5% chance of a caller receiving a busy signal?
Answers: 3
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Mathematics, 21.06.2019 21:30, cassandramanuel
Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?
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During tax season, the IRS hires seasonal workers to help answer the questions of taxpayers who call...
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