Reference no: EM13816913
Spalding Doughnuts wants to know about its waiting line. Currently, Spalding Doughnuts uses a single-server, single-phase system when serving customers. Based on historical evidence, the average number of customers arriving per hour is 90 and is described by a Poisson distribution. They estimate that they can serve 120 customers per hour with the service times that follow an exponential distribution. Being that Spalding’s customers have infinite patience and are willing wait in rain, sleet and snow for the chance to get the “doughnuts of the gods,” we don’t see any balking or reneging. Being that Spalding Doughnuts is located in Lexington, Kentucky … a city with a large population… customers come from an infinite population. The Spalding family would like you to help them solve some thorny operational problems and figure out some system performance measures.
1. What is the average number of customers waiting in line?
A) 5.52.
B) 4.25.
C) 8.52.
D) 2.25.
E) 3.
2. What is the average utilization?
A) .75.
B) .62.
C) 30.
D) 1.3.
E) .25.
3. What is the probability of having more than 3 customers in the system?
A) 10.55%.
B) 25%.
C) 31.64%.
D) 42.19%.
E) None of these answers.
4. On average, approximately how long do customers spend in the waiting line before they first get served?
A) 3 minutes.
B) 4.5 minutes.
C) 1.5 minutes.
D) 2 minutes.
E) 2.5 minutes.
5. On average, approximately how long customers spend in the service system (i.e., the time from first getting in line until they receive their doughnuts)?
A) 1.5 minutes.
B) 2.5 minutes.
C) 3.5 minutes.
D) 3 minutes.
E) 2 minutes.
|
Explain how this would impact the accounting for the company
: You, the sales manager, asked a sales representative to create a training session for the sales team, a task that will require the salesperson to spend about $60 on materials that company policy expressly prohibits salespeople from charging on the..
|
|
How much will you owe after ten years of accumulating debt
: Suppose you borrow $6,000 in student loans at a 5 percent annual interest rate in 2013. How much will you owe after 10 years of accumulating debt? If inflation is 6 percent per year over this period, how much will you owe after 10 years in real 2013 ..
|
|
The standard deviation of systolic blood pressure
: A doctor claims that the standard deviation of systolic blood pressure is 12 mmHg. A random sample of 24 patients found a standard deviation of 14 mmHg. Assume the variable is normally distributed.At a = 0.01, what are the critical X²
|
|
Describe the typical religions and family structures in us
: Describe the typical religions, family structures and traditional health beliefs and practices of these groups before and after immigration to the United States.
|
|
What is the average number of customers waiting in line
: Spalding Doughnuts wants to know about its waiting line. Currently, Spalding Doughnuts uses a single-server, single-phase system when serving customers. What is the average number of customers waiting in line? What is the probability of having more t..
|
|
Discuss leveraging self-awareness
: Choose any one of the concepts discussed in the "Leveraging Self-Awareness" article by Morgan and find at least one reference to more fully describe that concept. In your post, identify how the research you found more fully explains Morgan's point..
|
|
What is the level of saving equilibrium
: Suppose we investigate a particular example of a model with no government. Suppose the consumption function is given by C=100+.8Y, whereas investment is given by I=50. What is the equilibrium level of income in this case? What is the level of saving ..
|
|
Compare and contrast the change interventions
: Select a, b, or c from the list below and compare and contrast the change interventions. a. Transitional and Transformational Change b. irst and Second Order Change c. Operational and Strategic Change You must use at least two scholarly journal ar..
|
|
Streets in kansas are maintained by public works division
: 1. Streets in Kansas are maintained by Public Works Division; "Street Maintenance". Public Works administrators are planning the workforce of this division for next year. Labor hour requirements for the next year are 8,000, 14,000, 29,000, and 18,000..
|