error free. In other words‚ if something has often happened in the past‚ it will likely happen in the future (Lee & Baskerville‚ 2003). In research that is extremely important because once researchers have collected enough data to support their hypothesis‚ they can develop a premise to predict the outcome in similar situations with a certain degree of accuracy (Lee & Baskerville‚ 2003). In order to increase our confidence in the generalizability of a study‚ it would have to be repeated with the
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World Journal of Agricultural Sciences 8 (6): 568-584‚ 2012 ISSN 1817-3047 © IDOSI Publications‚ 2012 DOI: 10.5829/idosi.wjas.2012.8.6.1688 An Insight in Statistical Techniques and Design in Agricultural and Applied Research Ajay S. Singh and Micah B. Masuku Department of Agricultural Economics and Management‚ Faculty of Agriculture‚ University of Swaziland‚ Swaziland Abstract: Advance applied science researches have experienced a dramatic change in knowledge and an exponential increase
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golf balls. The testing was performed with a mechanical fitting machine so that any difference between the mean distances for the two models could be attributed to a difference in the design. The outcomes are given in the table of appendix 1. 3. Hypothesis testing The first thing to do is to formulate and present the rationale for a hypothesis test that Par‚ Inc. could use to compare the driving distance of the current and new golf balls. By formulation of these hypothesis there is assumed
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QWhat do you mean by Statistical Survey? Differentiate between ³Questionnaire´and ³Schedule´.Answer:Statistical SurveyA Statistical survey is a scientific process of collection and analysis of numericaldata. Statistical surveys are used to collect numerical information about units in apopulation. Surveys involve asking questions to individuals. Surveys of humanpopulations are common in government‚ health‚ social science and marketing sectors.Stages of Statistical SurveyStatistical surveys
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future occurrences are all areas which fundamentally rely on the use of Statistics. Statistics is a broad subject that branches off into several categories. In particular‚ Inferential Statistics contains two central topics: estimation theory and hypothesis testing. The goal of estimation theory is to arrive at an estimator of a parameter that can be implemented into one’s research. In order to achieve this estimator‚ statisticians must first determine a model that incorporates the process being
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MBA SEMESTER 1 MB0040 – STATISTICS FOR MANAGEMENT Assignment Roll No. 1- Statistical survey is a scientific process of collection and analysis of numerical data used to collect information about units. Questionnair and schedule are both methods of collecting data in statistical survey. At questionnair the questions is sent by mail to respondents to fill it and send it back. At schedule the questions is filled by the enumerator. Questionnair is a cheaper process than schedule when it was
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Check sheets is a form which uses simple check marks (1111) to collect number of multiple defects or data. By using check sheet‚ the highest defect and total number of defects encountered can be identified. The data collected from the check sheet will then be transferred to Pareto chart for further analysis. A Pareto chart‚ also called a Pareto distribution‚ is a vertical bar graph in which values are plotted in decreasing order of relative frequency from left to right. Pareto charts are extremely
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research………………………….……………………….. P. 5 4. Topic 1: THEORY‚ HYPOTHESIS AND RESEARCH DESIGNS………………………………… P. 6 5. Topic 2: PROBABILITY.…………………………………………………….………………………… P. 10 6. Topic 3: GENERAL PRINCIPLES OF HYPOTHESIS TESTING……….………………………… P. 22 7. Topic 4: STATISTICAL HYPOTHESIS TESTING: SINGLE SAMPLE GROUPS DESIGN.…… P. 29 8. Topic 5: STATISTICAL HYPOTHESIS TESTING: TWO SAMPLE GROUPS DESIGN………… P. 31 9. Topic 6: STATISTICAL HYPOTHESIS TESTING: CORRELATION DESIGNS………….……… P. 33 10. APPENDIX
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proceedings‚ government reports‚ books etc.‚ must be tapped depending on the nature of the problem. 3. Development of working hypotheses: After extensive literature survey‚ researcher should state in clear terms the working hypothesis or hypotheses. Working hypothesis is tentative assumption made in order to draw out and test its logical or empirical consequences. As such the manner in which research hypotheses are developed is particularly important since they provide the focal point for
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researching a hypothesis and understanding the mean. The hypothesis testing begins with the statement and the assumption that determines the population of the mean‚ (Lind‚ 2011‚ p.288.). There are five steps taken which include; state the hypothesis‚ select level of significance for it‚ identify the test statistics‚ formulate decision rule‚ and take a sample to arrive at a decision. On the contrary‚ however‚ McClave‚ 2011 states that there are seven steps including; null hypothesis‚ alternate hypothesis
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