To what extent will does correlation and extrapolation assist Nintendo in forecasting sales?
To what extent will does correlation and extrapolation assist Nintendo in forecasting sales? (34 marks) Correlation is the relationship between two variables. Extrapolation is related to correlation, as it involves plotting a linear regression curve (also known as a line of best fit) which is based upon how two variables are correlated, and extending the line to predict future values. For Nintendo, a computer game and console manufacturing company, a common example would be the relationship between the level of advertising expenditure and the effect of this on sales of its products. The graph to the left shows a strong positive correlation between sales and advertising, meaning if Nintendo increases its advertising, they can expect to see an increase in sales. Because all values are close to the line, as advertising expenditure increases on the x-axis, sales on the y-axis increase proportionately. The regression line can be extended past the '80' figure (meaning £80million) to predict what sales will be like if they spend £100million or even £900million. The uses of such analysis to Nintendo are to an extent very valuable. By creating a scatter graph like the one above, Nintendo can spot trends and forecast future events. For example, they could estimate demand at a certain point in the coming year. One would expect demand to surge at Christmas time when people are
Tennessee Williams wrote in a letter that It (Streetcar) is a tragedy with the classic aim of producing a catharsis of pity and terror and in order to do that, Blanche must finally have the understanding and compass
Tennessee Williams wrote in a letter that "It ('Streetcar') is a tragedy with the classic aim of producing a catharsis of pity and terror and in order to do that, Blanche must finally have the understanding and compassion of the audience. This without creating a black-dyed villain in Stanley. It is a thing (misunderstanding) not a person (Stanley) that destroys her in the end." In your opinion, to what extent has Williams succeeded in his aims. Although there are many different viewpoints on a conventional tragic heroine, Aristotle made his views clear that a hero must fall from fortune and power, due to a tragic flaw, allowing an audience to feel catharsis at the end of the play. It can be argued that Stanley causes Blanche's downfall, however, it is clear that Blanche had brought this upon herself by creating a conflict between them and ensures her own downfall by other means such as her promiscuity and flux into fantasies. Williams makes it clear that a misunderstanding destroys Blanche in the end. This misjudgement can be seen in her aggressive teasing of Stanley and her uncomfortable belonging in multi-cultural New Orleans. From the beginning of the play, Williams makes it clear that 'the Kowalski and the DuBois have different notions' with Blanche withholding the Southern Belle attitude of 'Belle Reve'. However, it is clear that Blanche cannot cope with the stark
Preparation of propanone from propan-2-ol
Date: 11/10/2011 Exp. No.: 23 Title: Preparation of propanone from propan-2-ol Aim: The aim of this experiment is to prepare propanone by oxidizing propan-2-ol with acidified potassium dichromate solution. Introduction: Ketones and aldehydes are important series in preparation of other compounds and they are commonly prepared by oxidizing alcohol which is done in this experiment. The experiment is an oxidation reaction where a secondary alcohol (propan-2-ol) is oxidized by acidified potassium dichromate. The reaction does not need to be heated but should be placed in an iced water bath as the reaction is highly exothermic. The product is propanone and no catalyst is needed for the reaction. The propanone is serparated from the reaction mixture by simple distillation and is purified using anhydrous cacium chloride. The equation of this reaction is as follow: Chromic acid is produced in situ by adding potassium dichromate (VI) with sulphuric acid and water. K2Cr2O7 + H2O + 2H2SO4 ? 2 H2CrO4 + 2 NaHSO4 The term chromic acid is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide. Chromic acid features chromium in an oxidation state of +6. It is a strong and corrosive oxidising agent. Apparatus and chemicals: Apparatus: Quick-fit distillation setup,
The comparison of antibacterial properties of herbal products and standard antibiotics
The comparison of antibacterial properties of herbal products and standard antibiotics Introduction: This is As biology coursework, studying the area of microbiology the main investigation contains the comparison of antibacterial properties of herbal products and standard antibiotics. Aim: The aim is to investigate the effect of herbal products against standard antibiotics on bacteria growth. To examine the extent to which the herbal products (tea tree oil and peppermint oil) and the standard antibiotics (penicillin and streptomycin), reduce bacteria growth of E.coli and M.luteus. This will be discovered by measuring the growth of bacteria on the agar plates and comparing the results. Background information: The proposed aim surrounds the study of bacteria growth and various other products, which can have an affect on the growth rate; it is therefore necessary to look deeper into the topic criteria to get a wider understanding and to help design an appropriate hypothesis. From self-knowledge antibiotics are chemicals produced by microorganisms, which are designed to inhibit and destroy specific pathogens when used at low temperatures. Antibiotics release chemicals, which inhibit bacterial growth and work on a specific action site. The first founded antibiotic was penicillin discovered accidentally by Alexander Fleming in 1928 from a mold culture. It can be
Evaluate the strategies that a business can adopt during a recession
Evaluate the strategies that a business can adopt during a recession A recession, two negative quarters of GDP in an economy, is inevitably going to lead to a business getting less customers. Its overhead costs will be the same, but its unit costs will be higher because it will not be producing as many products but will still have these fixed costs. This will make the business less profitable in the short-term and so strategies must be implemented to try to improve the business's short-term and long-term prosperity. Such strategies might include improving its cash flow position, downsizing, decreasing its costs, decreasing its gearing and managing its receivables and payables more carefully. A strategy of improving cash flow will involve many aspects. They will need to decrease their fixed costs so that their unit costs will decrease and it will be easier to make a profit in the difficult economic climate. This may involve selling off excess machinery or ordering less inventories, or it may involve increasing its operational efficiency by holding less inventories and thus lowering its storage costs. Ultimately, improving its cash flow will enable the business to remain more liquid in hard times, where investors (e.g. banks) will be less financially lenient, in the way of loaning money to businesses, during a recession. Thus it is more crucial than ever for a business to
Law of Evidence - R v Kearley
Law of Evidence - Assessed Work (No.2) by Simon Wolman R v Kearley Essentially this piece concerns whether the House of Lords correctly decided the case of R v Kearley1. The majority decided allowing the appeal, that the evidence concerned in this case was either irrelevant, and therefore inadmissible (unless part of the res gestae) or was inadmissible as hearsay in the form of an implied assertion. The facts of Kearley will be discussed, followed by an analysis of the decision by their Lordships, finally considering the issues of relevance and implied assertions in relation to the decision in Kearley. The facts of Kearley are well known. The disputed evidence was that the police officers whilst on the raid answered a number of callers to the flats, both by telephone and by visitors. The police officers testified that the callers were seeking to buy drugs in place of the original callers who were unwilling or unable to attend court. The appellant objected to the evidence on the ground that it was hearsay, but this was overruled. The Court of Appeal dismissed his appeal and certified a question to the House of Lords. Condensing the certified question, it was whether a person not called as a witness, for the purpose of not establishing the truth of any fact narrated by the words, but of inviting the jury to draw an inference from the fact that the words were spoken ? 2 On
¿Cuál es la posición que ocupa Master Mills en la industria?
Diploma en Marketing Estrategias de Distribución Profesor: Hernán Palacios ESCUELA DE ADMINISTRACIÓN Caso # 1 Masterton Mills Integrantes: Mariela Alvarado Macarena Gallardo Patricia Gallardo Adriana Ubilla Fabiola Negron Santiago de Chile, 20 de julio de 2004 . ¿Cuál es la posición que ocupa Master Mills en la industria? Industria La industria de Alfombras y Tapices en EEUU a la cual pertenece la empresa Masterton Mills ha alcanzado la etapa de madurez, lo cual se ve reflejado en los siguientes hechos: * Disminución de la participación de mercado de la industria de alfombras y tapices en la industria de los cubrepisos en EEUU * Fusiones, adquisiciones y quiebras entre 1985-1995 * Disminución en la demanda y ventas, especialmente en el sector Residencial con una baja de 6% desde 1994. * Exceso de capacidad de fabricación. * Escasos márgenes de utilidad. En 1995, 100 fabricantes de alfombras y tapices se reparten el mercado de los EEUU. El 10% de los fabricantes tenía el 87% de las ventas en dólares de la industria y fabricaban el 75% de todas las alfombras y tapices. El otro 90 % de las empresas fabricantes eran de tamaño intermedio, tenían el 13% de las ventas en dólares y el 29% de éstos se especializaba solo en alfombras, perteneciendo Masterton Mills, Inc. a este último grupo. Las ventas en la industria de las Alfombras y Tapices
Effects of Surface Area on Catalase Activity in Potato.
Effects of Surface Area on Catalase Activity in Potato Aim To investigate the effect of surface area on the activity of Catalase in potato. Hypothesis I predict that the potato which has been cut into more pieces will have the largest surface area. A larger surface area means that there will be more catalase molecules coming in contact with the reacting substrate, hydrogen peroxide. Enzymes react when particles come into contact with their active sites; if more of the enzyme is exposed (larger surface area) a greater number of active sites will be available to react with the hydrogen peroxide. The surface area of a 5cm tube with a diameter of 2cm equals 37.0 cms² ( 2 rh+2 r² ), but a 5 cm tube cut into five 1cm segments has a surface area of 62.83 cms². Every time another segment is cut from the 5cm tube two more areas have to taken into account, this means each time the 5cm tube is cut into a piece the surface area will increase. As a larger surface area produces a higher rate of reaction, my results should show a higher volume of gas released when using a potato with a larger surface area. Background Knowledge Enzymes are proteins which can be referred to as biological catalysts. Catalysts are molecules which increase the rate of chemical reactions and remain unchanged at the end of the reaction. Enzymes are made up of a chain of amino acids which are
Experiment investigating hydrogen bonding in different chemicals.
Tsuen Wan Public Ho Chuen Yiu Memorial College Form 6 Chemistry Practical Experiment 8: Hydrogen Bonding Date of experiment: 27-1-2011 Objective: A. To discover the existence of hydrogen bonds between ethanol molecules B. To measure the strength of hydrogen bond formed between ethanol molecules C. To investigate the formation of hydrogen bonds between molecules of ethyl ethanoate and trichloromethane D. To measure the strength of hydrogen bonds formed between molecules of ethyl ethanoate and trichloromethane Introduction: A hydrogen bond is the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group. The hydrogen must be covalently bonded to another electronegative atom to create the bond. These bonds can occur between molecules, or within different parts of a single molecule. The hydrogen bond (5 to 30 kJ/mol) is stronger than a van der Waals interaction, but weaker than covalent or ionic bonds. This type of bond occurs in both inorganic molecules such as water and organic molecules such as DNA. Intermolecular hydrogen bonding is responsible for the high boiling point of water (100 °C) compared to the other group 16 hydrides that have no hydrogen bonds. Intramolecular hydrogen bonding is partly responsible for the secondary, tertiary, and quaternary structures
descrive the biological importance of water
Making up between 70 and 95% of the mass of a cell, and covering over three quarters of the planets surface, water is one of the most important compounds on this planet. A single water molecule is made up of one oxygen atom covalently bonded to two hydrogen atoms. Covalent bonds are formed by sharing electrons between the outer shells of the oxygen and hydrogen atoms. However, what makes water so unique is the fact that it remains a liquid at room temperature. Many similar sized molecules (ammonia has a molecular mass equal to that of water-18) remain in their gaseous form at this temperature. The reasons for this unique thermal property are hydrogen bonds. The nucleus of an oxygen atom is larger and therefore contains many more protons that that of a hydrogen atom. Therefore, the electrons shared in the covalent bond between the oxygen and hydrogen atoms have a greater affinity for the oxygen atom than either hydrogen atom. This pulls the electrons closer to the oxygen atom and away from the hydrogen atoms resulting in the oxygen atom having a slightly negative charge and the hydrogen atoms developing slightly positive charges. These slight charges mean that when water molecules are close together, positively charged hydrogen atoms are attracted to the negatively charged oxygen atoms of a different water molecule. These attractions are known as hydrogen bonds and
