Quantitative Analysis Research Paper Example | Topics and Well Written Essays - 750 words

Quantitative Analysis - Research Paper Example It consists of three parts (Anderson, Sweeney, Williams, Camm, Cochran, Fry, and Ohlmann, 2010): Arrival or input to the system Waiting line The service facility An operations manager must make a trade of between the cost of providing good service and the cost of customer wait time or machine time. The most preferable arrangement for a manager would be that the queues are short enough that they do not annoy a customer. However, an operations manager would tolerate some waiting time if it leads to a significant savings in service costs. An operations manager can evaluate a service facility by looking at the total expected cost. The total cost is the sum of expected service cost plus expected waiting cost. A service cost will increase as the firm tries to increase the level of its services. Managers can have standby personnel who can be assigned to a service station to short the length of the queue. Waiting cost is a reflection of the workers lost productivity and the cost of losing a customer as a result of poor service or long queue. In some service systems this cost of waiting line can be intolerably high. The fundamental advantage of using a waiting line model is that it helps a manager to find out discrepancies in service systems and take measures to eradicate them. Thereby, making the service system efficient and customers satisfied. Example: MacDonald’s can make use of the knowledge from this theory. The service system of MacDonald’s consists of customer queues and billing counters. The floor manager needs to decide the number of billing counters it would keep open at a given time. He needs to forecast the customer arrival rate at a given time and match it with the number of open billing counters. In this way he would ensure that optimal counters are functioning to service customers. The aim behind this initiative is to minimize service time and customer waiting time. Mathematical Example: Current waiting cost/service= (1/4 min waiting) ($60/ min) =$15/service New System: ?= 8 customers/min arriving ?= 12 customers/min served Av waiting time in queue=Wq= ?/2? (?-?) =8/2(12) (12-8) =1/12min Waiting cost/trip= (1/12 min wait) ($60/min cost) =$5/trip Savings with more counters=$15(current system)-$5(new system) =$10/trip Cost of more counters=$3/trip Net Saving=$7/trip Constant Service-Time Model: Service systems having constant rather than exponential service time distribution are called Constant Service-Time Model. When customers or equipment are processed according to a fixed cycle, constant service times are suitable. Since the constant rates are fixed, therefore the values of Lq, Wq, Ls and Ws would be always less than single channel model (Anderson et al., 2010). Simulation: Simulation is the attempt to duplicate the features, appearance and characteristics of a real system. This method helps a manager to define the operating characteristics of a system; thereby putting him in a better position to draw conclusions and make decisions based on the simulated models (Anderson et al., 2010). Benefits of Simulation: There are multiple reasons why this tool has become the most widely accepted tool by managers. Amongst these reasons are following: The tool is flexible and easy to use. It can be used to analyze complex real world situations. Time compression, meaning that the effects of operations policies during a particular time period can be obtained in a short time.

Online Game Addiction Essay Example for Free

Online Game Addiction Essay Online game addiction is no longer just a worry of an American-chubby-child’s mother, but the worry of many parents in Cambodia and other less affluent countries. Recently, more teenage Cambodians were addicted to online games, in order to satisfy their fantasy of being heroes or warriors. Cambodian teens would rather eat less or even skip meals just to save money for the online games. Other than spending money, they also wasted their time. According to Chheng Roth Donior, a Cambodian teen, he normally spends three to five hours a day in internet cafes, even under the threat of his mother. It might have sounded strange to you, since Cambodia is not a wealthy country and most of the urban teens do not have internet at home, and why would they be addicted to online games? One of the reasons is more and more internet cafes have opened up, and Web access is growing rapidly these years. Another reason would be the teenagers in fact do not know they’re addicted to the online games or its harmful effects. The consequence of online game addiction could be serious, for example, last year in South Korea, a man died after playing online games for five days straight. For sure, the teenagers would waste all their money and time on those internet cafes. They would have less incentive to work or study since the satisfaction gained from the games is far more than those they could gain in their daily lives. It would also harm the gamers’ health (e. g. with poorer eyesight and less exercise) and would lower their face to face communication skills. Later, they may not be able to distinguish between the reality and the created world. Teenagers are the future of the country, measures must be taken as soon as possible to curb the addiction. First, promotion from the government is very crucial. The teenagers may not understand the harmful effects of online game addictions, government should advertise the harmful effect and possible consequences through mass media, i. e. TV advertisements, news paper, radio etc. Posters should also posted in school, streets and especially the internet cafes, just like a warning note must also included on the package of cigarettes. For why the teenagers would addict to online games, is that they could gain a sense of satisfaction by beating down their created enemies. Therefore, the teachers and parents of the teenagers should help them build their confidence, like giving them chances to develop their talents. For example, school can provide more Extra-curriculum activities for them afterschool. They should also help the teenagers to identify their dreams and targets, assuring them that nothing is impossible and encourage them to fight for their dreams through talks and lessons. Then they would not stick to the computer screens, instead, they would work very hard on their dreams. On their ways towards their goals, parents and teachers should give supports and advice to them. Third, government should set up clinics to help the gamers overcome their internet addictions, just like what China and South Korea did. The clinics should provide counseling and information about online game addiction, this could help those people who had already addicted to online games. Lastly, education is always the last resort of most problems. Schools and parents have the responsibility in teaching the teens about the harmful effects of online game addiction. They should educate the students or their children starting from their childhood. Schools can hold more talks on the issue in order to make sure that they receive related information. If we do not cope with the problem as soon as possible, the situation would become more complicated and serious. The solutions I suggested above would definitely help dealing with the problem, and I hope the situation would be improved soon.

Are Most of The Errors Which EFL Learners Make Due to Interference from

Introduction It is commonly assumed that where there are differences between L1 and L2, the learner's L1 will probably interfere with the L2 (negative language transfer), whereas, when L1 and L2 are similar, the L2 will assist the L2 learning (positive language transfer) (Ellis, 1994). Therefore, we tend to believe that most of the errors are account of negative transfer. This is partly true according to many empirical studies of errors which have showed that many errors are common to different linguistic backgrounds. The L1 is, therefore, one of various sources of errors, and there might be other reasons which should be considered (Krashen, 1988). Approaches to Errors Errors are made when learners of L2 produce incorrect language because they do not know the correct form, while mistakes are made when learners produce incorrect language although they know the correct form (macmillandictionary.com). Learners can correct their own mistakes, but by definition, they can not correct errors. Errors are considered to be partial acquisition of the target language. In fact, errors should be viewed as "the tip of the iceberg" of a dynamic process of foreign language acquisition (brj.asu.edu). Instead of treating the developmental stages in learners' language as errors, it may be better to view these errors as partial acquisition. This point of view and many others concerning errors, however, neither overlook nor neglect the positive and negative influence of L1 on L2...

Pollution and environment Essay

Junk science is the term used to refer on political and legal disputes that brands an advocate’s claims about scientific data, research, analyses as spurious. It simply means manipulating data that is the result of an experiment (Agin, 2006). There are many reasons why there are people who are engage in junk science. They want to change their findings and manipulate their outputs so that the outputs will agree to their hypothesis or target outcome. Personal motive is their driving force. The ethical standards are being violated because they do not show the real outcome of the experiment or study. Many sectors are now engage in junk science like universities, industries, faith group and even the government. According to Dan Agin who made published many books about junk science claims that these sectors twist science for their own gain. The benefits of their findings will not benefit the common people but for their own sake (Agin, 2006). According to Agin, there are two main cause why junk science is being done by these institution. These are fraud and ignorance. As what been discussing on the first part of the paper, deception on the results so that new development will occur. Ignorance comes to the scene when statistical analysis is being manipulated. It is very obvious that all results from statistical analysis are reliable. Agin gives examples as he mentioned from his book why ignorance is a main cause of junk science. One of his examples is the declaration of the Department of Agriculture of United States regarding on the issue of genetically modified foods. The department claims that genetically modified foods are harmless to human when eaten. But the department did not provide any proof on their findings. Instead, they broadcast their wanted result to the people without the result of their experiments (Agin, 2006). Agin is concerned to the welfare of the people on the possible outcome of junk science in the society. If a person asked where is junk science? â€Å"The answer is that it’s in the hiding of what you need to know. † There are many incidences where junk science can be observed. One of the first people who saw junk science results is the Fox News columnist Steven Milloy. He argues on the findings and results regarding on global warming, ozone depletion and other issue pertaining to the pollution and environment. He claimed that the results from the findings were not supported by experiment and statistical analysis. Because he wants to inform other people on the effects of junk science like suffering from a rampage against reason by special interests in government, commerce, and the faith industry, he made a website about junk science and the possible result of it in the society. From the institutions who are engage in junk science, the government is the most common committers. The government when making rules and regulation for their subordinates is actually made because on their personal interests. They will create rules and regulations that looks like it is concerned on the welfare of the society but actually the main benefits why they manipulate the findings in science is to expand their authority and to increase their budgets. People must be aware on the possible effects of junk science on the lives of many people. Concerned citizen must fight junk science so that it will eliminate the further damage that may be brought by junk science. Reference: Agin, D. (2006). Junk Science: How Politicians, Corporations, and Other Hucksters Betray Us Thomas Dunne Books.

Customer Segmentation Analysis

Customer analysis Segmentation: segmentation means the identification of customer group’s responds differently from other groups to competitive offering. It must have following features: feasibility, sustainability, and profitability. Generally speaking, we often use five criteria to segment the market. The segmentation can be defined by several methods; the first one is by demographic characteristics. It is effective partly because person’s life stage affects his or her activities, interests and brand loyalties.The second one is the benefits, because the selection of benefits can determine a total business strategy. The third one is price sensitivity, and it represents the trade-off between low price and high quality. The next important criterion is loyalty. Each cell of the brand loyalty matrix (organized by loyalty level and customer type) represents very different strategic priority and can justify a very different program. The last one is applications, as some prod ucts and services, particularly industrial products, can best be segmented by use or applications.In the end, we also have to pay attention that two distinct segmentation strategies are possible. Customer motivations: After identifying customer segments, the next step is to consider their motivations: what lies behind their purchase decisions. There are four steps to determine the customer’s motivations. The first step is to determining motivations. Although a group of managers can identify motivations, a more valid list is usually obtained by getting customers to discuss the product or service in a systematic way.The next step is to cluster the hundreds of motivation to groups and subgroups. Another task of customer motivation analysis is to determine the relative importance of the motivations. A fourth task is to identify the motivation that will play a role in defining the value proposition of the business. Also, there are three other important points that we have to pay a ttention to in understanding the customers’ need. Qualitative research, including the focus group, in-depth interviews, and customer case study, is a powerful tool in understanding customer motivation.It is particularly critical to gain insight into changes in customer’s priorities. Also, all the research should treat the customer as the active partner. Unmet needs: An unmet need is a customer need that is not being met by the existing product offerings. Unmet need s strategically important because they represent opportunities for firms to increase their market share, break into a market, or create and own new markets. There are two important points that we need to catch them.Firstly, use customer to identify unmet need. They are the prime source and marketer should get access to them and detect the unmet need from them. Secondly, ethnographic or anthropological research involves directly observing customer in as many as context as possible. By accurately observing not only what is done involving the target or service but why it is being done, companies can achieve a deeper level of understanding of customer’s needs and motivation and generate actionable insights.