บทบาทของนักสถิติต่อภาคธุรกิจ และอุตสาหกรรม
Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry must be based on gathering observable, empirical and measurable evidence sub ject to specific principles of reasoning.techniquesphenomenaknowledgeinquiryobservableempiricalmeasurableevidencereasoning A scientific method consists of the collection of data data through observation and experimentation, and the formulation and testing of hypotheses.observationexperimentationhypotheses
Although procedures vary from one field of inquiry to another, identifiable features distinguish scientific inquiry from other methodologies of knowledge. Scientific researchers propose hypotheses as explanations of phenomena, and design experimental studies to test these hypotheses. These steps must be repeatable in order to dependably predict any future results. Theories that encompass wider domains of inquiry may bind many independently-derived hypotheses together in a coherent, supportive structure. This in turn may help form new hypotheses or place groups of hypotheses into context.field of inquiryhypothesesexperimentalstudiesTheories
Among other facets shared by the various fields of inquiry is the conviction that the process must be objective to reduce biased interpretations of the results. Another basic expectation is to document, archive and share all data and methodology so they are available for careful scrutiny by other scientists, thereby allowing other researchers the opportunity to verify results by attempting to reproduce them. This practice, called full disclosure, also allows statistical measures of the reliability of these data to be established.objectivebiasedarchivesharemethodologyreproducereliability
Four essential elements of a scientific method are iterations, recursions, interleavings, and orderings of the following:iterationsrecursionsinterleavingsorderings Characterizations (observations, definitions, and measurements of the subject of inquiry) Characterizations Hypotheses (theoretical, hypothetical Hypotheses explanations of observations and measurements of the subject)explanations Predictions (reasoning including logical deduction from the hypothesis or theory) Predictionsreasoninglogicaldeductionhypothesistheory Experiments (tests of all of the above) Experimentstests
“Hypothesis” implies insufficient evidence to provide more than tentative explanation “Theory” implies the greater range of evidence and greater likelihood of truth “Law” implies the statement of order and relation in nature that has been found to be variable under the same condition.
Statistics is the science of making effective use of numerical data relating to groups of individuals or experiments. It deals with all aspects of this, including not only the collection, analysis and interpretation of such data, but also the planning of the collection of data, in terms of the design of surveys and experiments.datasurveysexperiments
Statistics for Industry has an unrivalled reputation for more than 25 years as a provider of practical training courses in statistics in applications throughout industry and research. Course titles include:- Statistical Methods in Practice Statistical Process Control Statistics: Over The First Hurdle Statistics in Quality Assurance Statistics for Analytical Chemists Statistics for Microbiologists Statistics in Sensory Evaluation Statistics for Researchers Multivariate Analysis Design of Experiments Analysis of Large Data Sets
Business statistics is the science of good decision making in the face of uncertainty and is used in many disciplines such as financial analysis, econometrics, auditing, productionfinancial analysiseconometricsauditing and operations including services improvement, and marketing research. These sources feature regular repetitive publication of series of data. This makes the topic of time series especially important for business statistics. It is also a branch of applied statistics working mostly on data collected as a by-product of doing business or by government agencies.time seriesapplied statistics It provides knowledge and skills to interpret and use statistical techniques in a variety of business applications. A typical business statistics course is intended for business majors, and covers statistical study, descriptive statistics (collection, description, analysis, and summary of data), probability, and the binomial and normal distributions, test of hypotheses and confidence intervals, linear regression, and correlation.normal distributionslinear regression
Use of statistics Description Analyze Prediction
Network with business & industry Application Explanation not description Indirect interpretation Significant value and reliability