“Exercise 11 - Using Statistics to Describe a Study Sample” “Name:” _Kris Bailey______________________________ “1. What demographic variables were measured at least at the interval level of measurement?” “2. What statistics were used to describe the length of labor in this study? Were these appropriate?” “3. What other statistic could have been used to describe the length of labor? Provide a rationale for your answer.” “4. Were the distributions of scores
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on the accuracy and precision of measurements for products sold by the retail industry‚ such as a gallon of gasoline‚ a bushel of corn‚ or a liter of bottled water. These measurements have to be precise and accurate when it this relates to how farmers sell their products such as wheat‚ corn‚ milk‚ peanuts‚ and cotton‚ by weight and or in a bulk sale. Like food products gasoline‚ water‚ oil‚ and several other liquid goods are sold in quantity and if the measurements are not accurately sold per gallon
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In this lab‚ there was a comparison between accuracy and precision of densities measured by volume. Mass measurements are often used units in the metric system. Volume can be examined a borrowed unit. The volume measurements were made in mL. Every measurement had a level of hesitancy affiliated with it. The experiment could feel uncertain from the object used for measurement and from the accuracy of the person doing the measuring of the volume. Because of this uncertainty‚ the experiment must be
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Osmosis coursework Aim: To investigate the effect of different concentration of a sugar solution on the amount of osmotic activity between the solution and pear pieces of a given size. Define osmosis: Osmosis is a net movement of water/ solution molecules from a region of high concentrated area to a region of lower concentrated area through a semi-permeable membrane which lets smaller molecules such as water through but does not allot bigger molecules like glucose to pass through. The molecules
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device is used to measure lengths and the diameter of a component‚ giving precise readings. It has a pair of external and internal jaws that are used to measure the dimensions of an object; this is done by having one movable jaw and one fixed. Measurements are read from a graduated bar. [3] Accuracy: + 0.02mm Slip gauges: Slip gauges are metallic or ceramic blocks with two opposing faces that are ground precisely flat and parallel‚ at a precise distance apart. Accuracy of the slip gauges depends
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Effect and to prove that a new framework is mandatory. The Bullwhip Effect is most commonly measured and detected by the variance ratio - the ratio between the demand variance at the downstream and at the upstream stages. Nevertheless other measurement procedures exist and they concentrate more or less on some factors as for instance the final demand data set‚ the seasonality coefficient and the coefficient of variation. In 2004‚ to avoid the “peak order amplification”‚ Zhang
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SA 5095‚ Australia Received 29 January 2007; received in revised form 18 May 2007; accepted 13 June 2007 Abstract Performance measurement models are essential to support various decision making problems that may arise during life cycle of a facilities layout. Available models are only suitable for early stages in the design phase of life cycle. However‚ measurement models have a great consequence in other phases also such as production planning‚ control and when modification to be incorporated
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The Five Traps of Performance Measurement by Andrew Likierman In an episode of Frasier‚ the television sitcom that follows the fortunes of a Seattle-based psychoanalyst‚ the eponymous hero’s brother gloomily summarizes a task ahead: “Difficult and boring—my favorite combination.” If this is your reaction to the challenge of improving the measurement of your organization’s performance‚ you are not alone. In my experience‚ most senior executives find it an onerous if not threatening task. Thus they
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Microcontroller based LCR meter M.A. Atmanand‚ V. Jagadeesh Kumar Department of Electrical Engineering‚ Indian Institute of Technology‚ Madras 600 036‚ India Received 19 March 1995; revised 10 May 1996 Abstract A microcontroller based scheme for LCR measurement is described. The unknown element (an inductor or a capacitor or a resistor) is measured employing a non conventional ac bridge. The element to be measured forms one arm (side) of the bridge and the second (series) arm is made up of a simple resistor
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to observe a change in the period (our dependent variable). In order to reduce possible random errors in the time measurements‚ we repeated the measurement of the period three times for each of the ten lengths. We also measured the time for ten successive swings to further reduce the errors. The length of our original pendulum was set at 100 cm and for each of the following measurements‚ we reduced the length by 10 cm. THEORY A simple pendulum performs simple harmonic motion‚ i.e. its periodic motion
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