if you open a faucet (the independent variable)‚ the quantity of water flowing (dependent variable) changes in response--you observe that the water flow increases. The number of dependent variables in an experiment varies‚ but there is often more than one. Levels of Measurement The level of measurement refers to the relationship among the values that are assigned to the attributes for a variable. What does that mean? Begin with the idea of the variable
Premium Measurement Statistics Number
capacity of 311g and provides a higher level of accuracy compared to the platform triple beam balance. 4. Explain the difference between precision and accuracy? Precision is a determination of the reproducibility of a measurement. It tells how closely several measurements agree with one another. Accuracy‚ on the other hand‚ is a measure of how closely the value determined agrees with a known or accepted value; and accuracy is subject to systematic errors. Accuracy refers to a standard whereas
Premium Temperature Volume Liquid
(16 hours) Elements of measurement‚ Statistical analysis of measurement results‚ Errors and uncertainties in measurement - computation of uncertainty in inputs and outputs. End‚ Line and wave length Standards of length‚ Airy & Bessel points‚ desirable features of end standards‚ calibration of end standards by interferometry - NPL Gauge length interferometer‚ calibration of line standard by micrometer microscope‚ Photoelectric microscope and moir fringe technique‚ measurement of large displacements
Premium Metrology Test method Measurement
Drilling Mud density or specific gravity is the most significant measurement required and no reliable visual estimate exists. The mud density or specific gravity must be accurately measured in order to successfully drill a well hole. The most accurate measurement of mud density is made by using the Mud Balance. Viscosity is the resistance to flow offered by a fluid. The term is loosely applied as the flow properties of drilling mud. The relative viscosity‚ or the cuttings carrying ability of the
Premium Oil well Viscosity Drilling rig
quantities. All engineers must use the same language in their communications‚ and one of these universal communication tools is the units of measurements. Physical quantities such as length‚ weight‚ time‚ speed‚ force‚ and mass are measured with standard units. Therefore the magnitude if a physical quantity is given by a number and standard unit of measurement. Examples: 5 meters‚ 60 kilograms. SI units are the international system of units (system international). The SI Base Units for the seven
Premium Velocity Acceleration Dimensional analysis
in cubic feet per second. The up-stream and downstream cross-sections were setup using a tape measure and stakes. There were 21 cross-sections in measured intervals. A current meter was used to measure velocity at the same location as each depth measurement at each cross-section that was determined. Also used was the float-Method‚ a length of stream was measured‚ and a start and finish points were sectioned off. Then a float was used to measure how long it took to get from start line to the finish
Premium Velocity Measurement PH
of the Comprehensive Balance Scorecard (BSC) for a non-profit‚ award-winning‚ and highly progressive with an outstanding broad-based collection‚ Otago Museum. The Balanced Scorecard (BSC) is an example of a performance measurement system. The newly created performance measurement system incorporates four different dimensions‚ such as Financial‚ Community / Customer Perspective‚ Internal Business‚ and Learning / Innovation and Growth‚ in an effort to achieve goal congruence within an organization
Premium Balanced scorecard Strategy map Strategic management
Measuring Crime Trends Felicia Moye Miller-Motte College Most measurement of crime in this country emanates from two major data sources. For almost seven decades‚ the FBI’s Uniform Crime Reports (UCR) has collected information on crimes known to the police and arrests from local and state jurisdictions throughout the country. The National Crime Victimization Survey (NCVS)‚ a general population survey designed to discover the extent‚ nature‚ and consequences of criminal victimization
Premium National Crime Victimization Survey Police Assault
⌧ISO 9001 and 17025 ⌧Conformity Assessment and ISO Standard ⌧Composition of the Standard ⌧Assessment for Accreditation of 17025 ⌧Steps for Building a Laboratory Management System ⌧(Assuring of the Quality of Test Results) ⌧(Uncertainty of Measurement) ISO/IEC 17025:2005 （Romanian version : SR EN ISO/CEI 17025:2005） Title: “General Requirements for the Competence of Testing and Calibration Laboratories” ISO : International Organization for Standardization IEC : International Electrotechnical
Premium Test method Quality management Quality management system
industry‚because of its non-contact measurement‚ and strong anti-interference‚ etc‚. However‚ its accuracy is difficult to reach the micron-level. This paper uses the accuracy analysis theory and the software error correcting technology to calibrate measurements. Besides‚ it gives an effective principle‚ which uses “minimum interval” and “maximum ranges segment” to determine the optimum operating ranges of eddy current sensor‚ to improve the sensor’s measurement accuracy. This method is used in
Premium Measurement Standard deviation Errors and residuals in statistics