Description Advantages Disadvantages Stratified This requires one to be bias towards their data. For example‚ if you knew the proportion of pensioners in an area was 30% and you wanted to represent this in your sample you would ensure that pensioners’ answers only made up 30% of your sample. It can be used with random or systematic sampling‚ and with point‚ line or area techniques If the proportions of the sub-sets are known‚ it can generate results which are more representative of the whole population
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method is used to collect data due to time‚ cost constraints and because of large population of mobile telecommunication services users in the XXX. Even though the sampling method adopted in this study has its limitations but it is assumed that the sample represents the whole population of mobile telecommunication services users in XXX. On 15 February 2012‚ 110 questioners were distributed and collected; there are 110 valid questionnaire responses it about 100 percent. The survey was conducted mainly
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varied as there are customers. Question 2 How large should each sample size be for the experiment Schoss and Kluck describe on page 7 of the case? Question 3 The first 12 weeks of the data in aExhibit 4 represent the diagnostic period for the Policy Extension Group. What are the 3 sigma control limit for the process? In which of the subsequent weeks is the process out of control (if any)? Week Sample Size Errors 1 300 18 2 300 15 3 300
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ecologist involves an unpredictable component. In this method‚ all members of the population have an equal chance of being selected as part of the sample. The results involving random sampling can be categorized as descriptive statistics and inferential statistics (Montague 2009).Descriptive statistics includes simplified calculations of a given sample and arrange this information into charts and graphs that are easy to contrast. Trying to reach conclusions that extend beyond the immediate data alone
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Critique of Population & Sampling The population selected for this study was not randomly chosen. Forty-three psychiatrically challenged patients in a residential drug rehabilitation center were chosen for this study. “Researchers often study only samples for the sake of efficiency and then generalizes their results to the population of interest” (Pyrczak‚ 2008‚ p. 55). The sampling that took place began with forty patients‚ after three were eliminated from the study. The patients were randomly split
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The Relationship of a Risk-Taking Personality to Dangerous Driving In contemplating the term project’s objective‚ I hoped to determine the relationship between to variables that were unique‚ yet not so out of the norm that it would be difficult to collect and present the data. While pondering different scenarios‚ I thought about my two daughters. While a passenger in the car with both daughters‚ my younger daughter was being teased by her older sister about how slow and obedient she was when
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EMPLOYEE ENGAGEMENT – A STUDY CONCEPTUAL DEFINITION OF TITLE: Employee engagement‚ also called worker engagement. An engaged employee is one who is fully involved in‚ and enthusiastic about their work‚ and thus will act in a way that furthers their organization’s interests. According to Scarlett Surveys‚ "Employee Engagement is a measurable degree of an employees positive or negative emotional attachment to their job‚ colleagues and organization that profoundly influences their willingness to
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Adzraku Setsoafia Edem B020909031 BIT Level 200 morning System Analysis & Design (ICT 231) Five Methods for Identifying System Requirement and How They are Applied in any System Development Venture System requirement are the specification that define the functions or performance to be provided by a system logically and physically. The objective of identifying the system requirement is to understand the business functions and develop a system with the necessary specification that will meet
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Portfolio of Evidence HMEMS80 Assessment sheet Name and Surname: _________________________________________________ Student number: _____________________________________ GENERAL COMMENTS: Aspects 1. Marks Structure and Presentation Cover page completed fully Declaration of Authenticity completed Checklist completed and included ______/4 __/1 __/2 __/1 ______10 _______/5 Good Average 2-3: ____ Weak 0-1: ____ 2.1 Reflection on formative assessment Reflection on learning in Assignment 1 Evidence
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Managerial Economics Suppose you are the Marketing Manager of Bayer & Company‚ Ahmedabad‚ which are the techniques you will apply in forecasting demand of a product yet to be manufactured. The firm must plan for the future. Planning for the future involves forecasting. A forecast is an estimation or prediction about situations which are most likely to occur in near or distant future. No businessman can afford to ignore forecasting if he wants to thrive and prosper in his business. The firm
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