PPT-Measurement Guidelines Precision, Accuracy, and Estimating Uncertainty

Accuracy vs Precision What is the difference Accuracy vs Precision Precision accuracy Exactness Divisions on scale Reproducibility Uncertainty Significant digits Correctness Calibration. What’s the Diff?. Accuracy. Accuracy: . How . closely a measurement matches true or actual values. To . be accurate only requires the true value (the . bulls eye. ) and one measurement (one arrow to hit . I. n . M. easurements and in Calculations. Types of . Experimental. Errors:. Random Errors. :. A result of variations in the performance of the instrument and/or the operator. Do NOT consistently occur throughout a lab. 1. Statistical Significance and Performance Measures. Just a brief review of confidence intervals since you had these in Stats – Assume you've seen . t. -tests, etc.. Confidence Intervals. Central Limit Theorem. Graphing and Sig-figs. This should be review ;). Accuracy. = . how close to the accepted value your measurement is. Precision. = . Reproducibility, your measurement closely matches your other measurements. MASS. Definition: Measure of the amount of matter in an object. Value always stays the same, no matter the location in the universe. Measured by a balance. Units expressed in grams (g), kilograms (kg), and milligrams (mg). Precision. Accuracy. Error Types. Significant Digits. Error Propagation. Error in Measurement.  . "Accuracy" means truth.. "Precision" means detail..  . Accuracy. Accurate: measured value very close to actual value.. Using Significant Figures. S8CS3: . Students will have the computation and estimation skills necessary for analyzing data and following scientific explanations.. S8CS3d:.  Decide what degree of precision is adequate, and round off appropriately.. environmental research. Liew Xuan Qi (A0157765N). Cheong Hui Ping (A0127945W). Hong Chuan Yin (A0155305M). Best Practice Approaches for Characterizing, Communicating, and Incorporating Scientific Uncertainty in Climate Decision Making. 1.2 – Uncertainties and errors. Essential idea:. . Scientists aim towards designing experiments that can give a “true value” from their measurements, but due to the limited precision in measuring devices, they often quote their results with some form of uncertainty.. Section 1: Observation, Describing quantities, and Estimation. Section 2: Measurement uncertainty, Error propagation, and Analytical methods. Section 1 Objectives. . Core Principles. Physics and Observation. Accuracy of a measurement:. An indication of how close the measurement is to the accepted value. Percentage difference can be calculated to give a quantitative indication of a measurement’s accuracy—the smaller the percentage difference, the greater the . A. KHINE. DIVISION OF CHEMICAL PATHOLOGY. NHLS TYGERBERG . STELLENBOSCH UNIVERSITY. Laboratory Management workshop 3-6 June 2019. MEASUREMENT UNCERTAINTY. is a parameter, associated with the result of a measurement… that defines the range of the values that could reasonably be attributed to the measured quantity (UKAS). Uncertainty Essentials. Les Coveney, INAB Calibration & Uncertainty Day, 18th June 2018. Les Coveney, INAB Calibration & Uncertainty Day, 18th June 2018. Uncertainty Essentials. Definition of Measurement Uncertainty. Battery management systems. 1. Reference Designs / Collateral. Automotive High-Voltage and Isolation Leakage Measurements Ref. Design. Leakage Current Measurement Ref. Design for determining Insulation Resistance.