complex phenomena and non-linear interactions‚ the possibilities for prediction are limited. The primary purpose of any science is causal explanation. Precision in a mathematical sense is a supreme virtue. But precision over central concepts such as “market” and “firm” is inessential. Conceptual precision is no less important than mathematical precision. But no science can be absolutely precise. Being roughly right is better than being precisely
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In this experiment the initial mass of the sodium carbonate used was 2.69g. In each titration‚ 3 drops of methyl orange was added to the sodium carbonate solution. With this information the titration can begin‚ and the results obtained are shown below: Titration readings Titration Rough 1 2 3 4 5 Initial 0.00 4.30 22.00 21.00 15.00 25.90 Final 4.30 22.00 38.60 37.60 32.60 42.20 Titre (cm3) 4.30 17.70 16.60 16.60 17.60 16.30 Therefore‚ the average titre would be calculated as follows;
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------------------------------------------------- Keywords: Sampling‚ Central Tendency‚ Accuracy‚ Precision‚ Quantity‚ Statistical Tests RESULTS AND DISCUSSION In the experiment‚ the class was able to use an analytical balance properly‚ gain an understanding of some concepts of statistical analysis‚ and apply statistical concepts in analytical chemistry. The data was gathered using an electronic analytical balance. This equipment has a precision and accuracy that exceeds 1 part in 106 at full capacity. It can measure
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CO2:methanol/ethanol(80:20‚ 85:15‚ 90:10 – v/v); flow rates (0.5‚1‚1.5 ml/min);active back pressures (1600‚1800 and 2000psi); and column temperatures (35‚45 and 55⁰ C). The system conditions for further validation of its specificity‚ linearity‚ recovery and precision are as follows: 3.4.1
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now has become just another step toward the completion‚ and I am able to follow through with ease! I have also better developed my Sequence and Precision in the way that I approach and complete assignments. Before this course‚ I would just sit down and write the assignment‚ without consciously using my learning patterns. Now‚ I use Sequence and Precision to pre-write a draft‚ edit‚ and review my writing‚ as well as critically re-reading the assignment instructions‚ decoding it‚ and double checking
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Fe(NH4)(SO4)2 * 12H2O. Unknown solution C was FeCl3 * 6H2O. Unknown solution D was Fe(NO3)3 * 9H2O. The professor should have confidence that these are the correct identifications for the bottles because although the groups as a whole did not have the best precision and accuracy‚ it was mainly due to one or two groups having poor results. On a group to group basis though‚ there was very good accuracy. The results of each compound clearly identified the unknown with one of the iron compounds. There was no guessing
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will focus on the types of experimental uncertainty‚ the expression of experimental results‚ and a simple method for estimating experimental uncertainty when several types of measurements contribute to the final result. 1. Random errors: Precision (Errors inherent in apparatus.) A random error makes the measured value both smaller and larger than the true value. Chance alone determines if it is smaller or larger. Reading the scales of a balance‚ graduated cylinder‚ thermometer‚ etc. produces
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structures and localize functional activity to specific regions or even substructures within the brain. Temporal Resolution: Temporal resolution refers to the precision with which changes in brain activity can be
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Huanyu (Kaspar) Chen ID:1213054 11/3/2014 ES2A7 Dynamic Balancing Lab Report Name: Huanyu Chen Student ID: 1213054 Contents ES2A7 Dynamic Balancing Lab Report............................................................................................... 1 Abstract ..................................................................................................................................... 1 Introduction .....................................................................
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In accounting and auditing‚internal control is defined as a process effected by an organization’s structure‚ work and authority flows‚ people and management information systems‚ designed to help the organization accomplish specific goals or objectives.[1] It is a means by which an organization’s resources are directed‚ monitored‚ and measured. It plays an important role in preventing and detecting fraud and protecting the organization’s resources‚ both physical (e.g.‚ machinery and property) and
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