Statistics Final Exam Speech or Presentation Example | Topics and Well Written Essays - 1750 words

Statistics Final Exam - Speech or Presentation Example In the case of work completed in Excel, copy and paste show the formula(s) used. No work = no credit. The problems on this exam pertain to the Malls of the Thump McDonald Property group. Thump McDonald, often referred to as â€Å"The McDonald†, commissioned his apprentices to look at various statistics to determine the efficiency of his operations. A supplier manufactures batteries for the emergency backup lights in the mall corridors. A random sample of 256 batteries is taken and the sample mean life is 6.5 years with a standard deviation of 0.65 years. The law requires 99% confidence of operation when scheduling of battery replacement. Mall security estimates that the average daily per-store theft is exactly $335, but wants to determine the accuracy of this statistic. The company researcher takes a sample of 81 clerks and finds that =$300 and s = $80. A confidence interval of 90% was used to estimate the proportion of customers who buy at least two items during their shopping mall experience. A random sample of 150 customers produced the following confidence interval: 32% +/- 4%. What is the best way to explain the results? z-test should be used when the sample size is greater than 30 (n>30) and when the mean and the standard deviation are known. T-test is best suites when the sample size is lesser than 30 (n

Balfour Beatty and Corporate Social Responsibility Dissertation

Balfour Beatty and Corporate Social Responsibility - Dissertation Example The concept of corporate social responsibility is not something new (Hemingway 2002). In fact, as early as 1930’s the idea that firms should be responsible not only to its shareholders, but to society as a whole was already espoused (Hemingway 2002). However, it is only in the last forty years that discussions pertinent to CSR have become fervent. In the ensuing intensive elucidations pertinent to CSR, various concerns related to its definition, process, implications, field and many other issues have been raised (e.g. Carroll 1999; Friedman 1962; Porter & Kramer 2006). The demand for a positive response for CSR is asked of all companies regardless of the sector and size. Looking at the construction industry, its activities are highly prominent in communities where they are operating. The typical construction activities such as mineral extraction, construction, maintenance and demolition cause serious inconvenience, disruption to the general public and natural environment (Bart horpe, James & Taylor 2004). This situation if handled improperly can result in the ire of the community. On the other hand, accepting the high visibility and impact of the activities of the construction industry may become an opportunity for the company to build a positive relationship with the stakeholders in the public arena where they are conducting their affairs (Barthorpe et al. 2004). In this regard, this research will look into the practice of corporate social responsibility vis-a-vis Balfour Beatty, one of the largest construction companies not only in the UK, but also in the world. It asserts that upon observing the CSR response of Balfour Beatty, it can be attested that corporate citizenship is not a linear progression, but that it is possible for a company to be at various stages in different elements of CSR at the same time. Likewise, regardless of the intent of the company in adopting CSR, (this is significant to note because it is one of the arguments against CSR, e.g . Lin-Hi 2010), companions continue to respond to it in a positive way even if they get involved in some ‘unscrupulous activities’. This is significant as it serves as a lesson not only for the company involved, but also for all organisations. The project has the following structure. The first section is the introduction, which contains the focus and structure of the study. The second section of the project will deal with Balfour Beatty and how effective is it in aligning its goals and conduct with CSR. For the analysis, Mirvins and Googins’ Stages of Corporate Citizenship will be used. Meanwhile, the third section of the project will address a more in-depth look in some of the elements and stages of Mirvins and Googins’ Stages of Corporate Citizenship vis-a-vis Balfour Beatty Plc. Finally, the fourth part will be the limitations and conclusion of the study. In the end, it is the intention of the study to gain a better understanding of CSR by looking into the CSR of Balfour Beatty Plc. CSR and Balfour Beatty: A Demonstration of Corporate Citizenship Balfour Beatty PLC is a British construction, engineering,