PPT-Sampling Design and Analysis

MTH 494 LECTURE13 Ossam Chohan Assistant Professor CIIT Abbottabad 2 STRATIFIED SAMPLING 3 STRATIFIED SAMPLING 1 Stratification The elements in the population are divided into layersgroups strata based on their values on oneseveral auxiliary variables The strata must be nonoverlapping and together constitute the whole population. Approximating the . Depth. via Sampling and Emptiness. Approximating the . Depth. via Sampling and Emptiness. Approximating the . Depth. via Sampling and Emptiness. Example: Range tree. S = Set of points in the plane. Population = group of people you need to know information about. Census = information obtained from every person in population. Sample = small group from within the population. Sample survey = investigation done using a sample. Dru. Rose . Methods of Data Collection. Surveys . and Polls. Experimental. Studies. Observational. Studies. Dru. Rose . Polls and Surveys. Poll. Few questions. Multi-choice type only. Survey. Many questions. Big Question: How do you know when you have collected enough data and done it appropriately?. Today’s Agenda. Tips and Tricks. Article Review Discussion. Assignment for Feb 24. Sampling Review. Observation Approaches (Qualitative/ Quantitative) and Practice. 2. Groundwater Sampling. Sampling a well with a tennis shoe?. Standards, Directives, Guidelines................... 4. Standards, Directives, Guidelines. Hierarchy:- “more or less a general consensus” EN/AS/NZS=. Sampling is perhaps the most important step in assuring that good quality aggregates are being used on INDOT contracts. Since a sample is just a small portion of the total material, the importance th Sampling And AliasingSampling And AliasingWhat is sampling?What is sampling?–– The Process of conversion of analog signal to the The Process of conversion of analog signal to the digital sig Rare . Event. Analysis with Multiple Failure Region Coverage. Wei Wu. 1. , Srinivas Bodapati. 2. , Lei He. 1,3. 1 Electrical Engineering Department, UCLA. 2 Intel Corporation. 3 . State . Key Laboratory of ASIC and Systems, . Husheng Li. The University of Tennessee. Chopper Sampling . We introduce a switching function such that . x_s. (t)=x(t)s(t), where. Nyquist. Criterion. The sampling rate should be at least twice the bandwidth of the signal, in order to fully reconstruct the signal.. Robert Christensen. , Feifei Li. University of Utah. Lu Wang, Ke Yi. Hong Kong University. Of Science and Technology. Motivation. Geo Spatial Data is being collected on a massive scale. Approximate aggregations is fast and often effective for this data. A link between Continuous-time/Discrete-time Systems. x. (. t. ). y. (. t. ). h. (. t. ). x. [. n. ]. y. [. n. ]. h. [. n. ]. Sampling. x. [. n. ]=. x. (. nT. ), . T. : sampling period. x. [. n. ]. x. Presented by:. Er. Bhagawan Shrestha. Quality Assurance Plan. Total Quality management (TQM). As defined by ISO: “TQM is a management approach of an organisation, . centered on Quality. , . based on participation of all its members of the organisation. 7. Introduction. In . a typical statistical inference problem, you want to discover one or more characteristics of a given population. .. However, it is generally difficult or even impossible to contact each member of the population.. Adeetya's Kitchen & Furniture in Pune offers exquisite handmade furniture designs with superior craftsmanship and modern, stylish appeal. https://adeetyas.com/factory-made-furniture-design-in-pune.php