BADM 3601 †Operations Management Assignmen

Statistics show that students arrive at a rate of four per hour, and the distribution is approximately Poisson. Assistance time averages 10 minutes, distributed exponentially. Assume population and line length can be infinite and queue discipline is FCFS. Using this information, answer the following questions. i. Calculate the percent of utilization of the graduate student P= 4/6 = 2/3 = . 6667 percent utilization ii. Determine the average number of students in the system ?= 4 per hour ?= 6 students helped an hour Ls= 4/ 6-4 = 4/2 = 2 students in the system on average. iii. Calculate the average time in the system Ws= 1/ 6-4 = ? = . 5 hours average time in the system iv. Find out the probability of four or more students being in line or being served P0= 1 – 4/6 = 1- 2/3 = . 33 probability that there are 4 or more students being in line or being served. . Before a test, the arrival of students increases to five per hour on the average. ?Compute the average number of students waiting under this scenario. Lq= 4^2 / 6 (6-4) = 16/ 12= 1. 33 student waiting in line on average. (b) Â  What are the three characteristics of a waiting? line system? 1. Arrivals or inputs to the system: these have characteristics such as population size, behavior, and a statistical distribution. 2. Queue discipline, or the waiting line itself: characteristics of the queue include whether is it limited or unlimited in length and the discipline of people or items in it. . The service facility: its characteristics include its design and the statistical distribution of service times. —————————————————————————————– Question 2. Radovilsky’s Department Store in Haywood, California, maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait. As soon as the clerk is free, the party who has waited the longest is transferred and serviced first. Calls come in at a rate of about 12 per hour. The clerk can take an order in an average of 4 minutes. Calls tend to follow a Poisson distribution, and service times tend to be exponential. The cost of the clerk is $10 per hour, but because of lost goodwill and sales, Radovilsky’s loses about $25 per hour of customer time spent waiting for the clerk to take an order. ?= 12 ? = 15 (a) What is the average time that catalog customers must wait before their calls are transferred to the order clerk? Wq= 12/ 15 (15-12) = . 2667 average time to wait before transferred (b) What is the average number of callers waiting to place an order? Lq = 12^2 / 15 (15- 12) = 3. 2 average number of callers waiting to place an order (c) Radovilsky’s is considering adding a second clerk to take calls. The store’s cost would be the same $10 per hour. Should it hire another clerk? Explain your decision. Yes they should hire another clerk because the customer average wait time and average number of callers waiting to place an order indicate that a second representative is needed. BADM 3601 – Operations Management Assignmen Statistics show that students arrive at a rate of four per hour, and the distribution is approximately Poisson. Assistance time averages 10 minutes, distributed exponentially. Assume population and line length can be infinite and queue discipline is FCFS. Using this information, answer the following questions. i. Calculate the percent of utilization of the graduate student P= 4/6 = 2/3 = . 6667 percent utilization ii. Determine the average number of students in the system ?= 4 per hour ?= 6 students helped an hour Ls= 4/ 6-4 = 4/2 = 2 students in the system on average. iii. Calculate the average time in the system Ws= 1/ 6-4 = ? = . 5 hours average time in the system iv. Find out the probability of four or more students being in line or being served P0= 1 – 4/6 = 1- 2/3 = . 33 probability that there are 4 or more students being in line or being served. . Before a test, the arrival of students increases to five per hour on the average. ?Compute the average number of students waiting under this scenario. Lq= 4^2 / 6 (6-4) = 16/ 12= 1. 33 student waiting in line on average. (b) Â  What are the three characteristics of a waiting? line system? 1. Arrivals or inputs to the system: these have characteristics such as population size, behavior, and a statistical distribution. 2. Queue discipline, or the waiting line itself: characteristics of the queue include whether is it limited or unlimited in length and the discipline of people or items in it. . The service facility: its characteristics include its design and the statistical distribution of service times. —————————————————————————————– Question 2. Radovilsky’s Department Store in Haywood, California, maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait. As soon as the clerk is free, the party who has waited the longest is transferred and serviced first. Calls come in at a rate of about 12 per hour. The clerk can take an order in an average of 4 minutes. Calls tend to follow a Poisson distribution, and service times tend to be exponential. The cost of the clerk is $10 per hour, but because of lost goodwill and sales, Radovilsky’s loses about $25 per hour of customer time spent waiting for the clerk to take an order. ?= 12 ? = 15 (a) What is the average time that catalog customers must wait before their calls are transferred to the order clerk? Wq= 12/ 15 (15-12) = . 2667 average time to wait before transferred (b) What is the average number of callers waiting to place an order? Lq = 12^2 / 15 (15- 12) = 3. 2 average number of callers waiting to place an order (c) Radovilsky’s is considering adding a second clerk to take calls. The store’s cost would be the same $10 per hour. Should it hire another clerk? Explain your decision. Yes they should hire another clerk because the customer average wait time and average number of callers waiting to place an order indicate that a second representative is needed.

Discuss the usefulness and limitations of financial ratios in Essay - 1

Discuss the usefulness and limitations of financial ratios in evaluating the performance and management of companies - Essay Example 300). The most common ratio is the current ratio/working capital ratio which represents the ratio of current assets to current assets. This ratio shows the company’s capability to meet its short term bills and expenses. Current ratio which is greater than one is more preferred since it means that the company has more current assets than current liabilities. A ratio which is less than one is unfavorable because it means that the company has more current liabilities than assets (Whittington 1980, p. 222). A high current ratio indicates a safety cushion and increases the flexibility since some of the stock items and receivables in arrears may not be easily be converted into cash. Entities can improve current ratio by the conversion of short term debts into long term debt, collecting promptly its receivables, buying inventory when only needed and necessary and paying down all debt. Current ratio is given by: This ratio is often termed as a more stringent liquidity test as it indicates whether a firm has adequate short-term assets to cover for current liabilities and this excludes selling inventory. A ratio of 1:1 shows that that an entity can pay its expenses without being forced to sell inventory (Barnes 1987, p.484). Working capital is a measure of cash flow and for an entity to be running well, this ratio must always be positive. This ratio measures the amount of that has been invested in resources subject to quick turn over. In most cases, lenders use this ratio to evaluate and ascertain the ability of the company at hard times (Whittington 1980, p. 219). In the financial year 2013, easy jet plc had the following liquidity ratios namely, current ratio of 0.89, quick ratio of 0.89 and a cash ratio of 0.75. All these ratios were positive thus favorable for the entity. One major limitation of the liquidity ratios is that they do not focus much on the

COOP WORK TERM ANALYSIS REPORT Paper Example | Topics and Well Written Essays - 2000 words - 1

COOP WORK ANALYSIS REPORT - Term Paper Example The number of people who are trying to commit crimes against kids through the internet, blogs, social media and other sites is rapidly growing. The cause of this is the use of technology amongst our children grows day by day. Software piracy; this is a case whereby someone copies software for personal use or distribution. This happens with programs that are not protected with malware protection, encryption keys or supplementary types of anti- piracy methods. These anti- piracy tools are, however, not perfectly foolproof since the Cyber criminals develop advanced ways of meandering with them. Anti- piracy methods will thus constantly be improved. Child pornography and Minor Assault; this is whereby an individual knowingly distributes, sells and buys child pornography via the internet. Child prostitution is also part of this since criminals have been using chat rooms to tempt minors into sexual encounters that are illegal. Computer Virus Transmission: a virus transmitter, who in this case is the criminal, creates a deadly virus that infects computers and causes them to function improperly. These viruses might also cause the computer to run irritating programs, or get access to a victim’s personal data. ‘Malware’ is the common name that is given to this software. Frequent types of malware are spyware, Trojan horses and Adware. Victims can without knowing download these programs via pop-up windows, websites and emails. Money Fraud; In this case, a victim is made to believe that he will be given money or some other valuable thing. â€Å"Phishing† scams entail creating replica emails while pretending to be genuine businesses like credit companies or banks that probe the victim to ascertain personal data. Computer Industry Espionage; this is the stealing trade secrets, or spying of individuals via technological ways for blackmail, corporate