Reference no: EM131103019
Exercise 1-
Suppose that 7.3, 6.1, 3.8 ,8.4, 6.9 ,7.1, 5.3, 8.2, 4.9, and 5.8 are 10 observations from a distribution (not highly skewed) with unknown mean µ,. Compute x‾ (10) , S2 (10), and an approximate 95 percent confidence interval for µ . For above data, test the null hypothesis
H0: µ = 6 at level α = 0.05.
Exercise 2-
Parts arrive at a single workstation system according to an exponential interarrival distribution with mean 21.5 seconds; the first arrival is at time 0. Upon arrival, the parts are initially processed. The processing-time distribution is TRIA (16, 19, 22) seconds. There are several easily identifiable visual characteristics that determine whether a part has a potential quality problem. These parts, about 10% (determined after the initial processing), are sent to a station where they undergo a thorough inspection. The remaining parts are considered good and are sent out of the system. The inspection-time distribution is 95 plus a WEIB(48.5, 4.04) random variable, in seconds. About 14% of these parts fail the inspection and are sent to scrap. The parts that pass the inspection are classified as good and are sent out of the system (so these parts didn't need the thorough inspection, but you know what they say about hindsight). Run the simulation for10,000 seconds to observe the number of good parts that exit the system, the number of scrapped parts, and the number of parts that received the thorough inspection. Animate your model. Put a text box in your model with the output performance measures requested, and make just one replication.
Exercise 3-
An acute-care facility treats non-emergency patients (cuts, colds, etc.). Patients arrive according to an exponential interarrival-time distribution with a mean of 11 (all times are in minutes). Upon arrival they check in at a registration desk staffed by a single nurse. Registration times follow a triangular distribution with parameters 6, 10, and 19. After completing registration, they wait for an available examination room; there are three identical rooms. Data show that patients can be divided into two groups with regard to different examination times. The first group (55% of patients) has service times that follow a triangular distribution with parameters 14, 22, and 39. The second group (45%) has triangular service times with parameters 24, 36, and 59. Upon completion, patients are sent home. The facility is open 16 hours each day. Make 200 independent replications of 1 day each and observe the average total time patients spend in the system. Put a text box in your Arena file with the numerical results requested.
|
Briefly describe how gladwell message supports my statement
: Stat 11 Spring 2011 - Homework 8. I have stated several times in class that although people often focus on the mean, the spread or variation is often as or more important than the mean. Briefly describe how Gladwell's message supports my statement...
|
|
Have the time and cost estimates made by the nist
: Have you or your employer been impacted by the migration to IPv6? Have the time and cost estimates made by the National Institute of Standards and Technology (NIST) been borne out (proven)?
|
|
Marketing and information technology strategies and tactics
: Write a 700- to 1,050-word section for your business model and strategic plan in which you add your strategies and tactics to implement and realize your objectives, measures, and targets.
|
|
Content of and standards for annual reports
: The Communications Department at Mosaic, Ltd. is getting ready to produce the organization's annual report that will be distributed to all investors and stockholders. Yvonne, who normally oversees the production and printing of this high-end repor..
|
|
Put a text box in your arena file with the numerical results
: Make 200 independent replications of 1 day each and observe the average total time patients spend in the system. Put a text box in your Arena file with the numerical results requested.
|
|
What is a c-corporation
: What is a c-corporation? What are the two advantages and disadvantages of a c-corporation? What is the control and profit retention of this sort of company?
|
|
Shares must the firm sell to net $20 million
: The underwriters' compensation will be 5 percent of the issue price, so Beranek will net $20.90 per share. The firm will also incur expenses in the amount of $150,000. How many shares must the firm sell to net $20 million after underwriting and flota..
|
|
Simple linear regression appropriate
: Why is simple linear regression appropriate to address one situation or problem but not the other? Support your ideas with evidence from the readings.
|
|
Java data structures
: Project is to create a German-English, English-German, French-English, English-French dictionary. You will be responsible for entering a total of twenty-five words in German, the part of speech each word represents and its English meaning. Please use..
|