Data Analysis: Statistical and Computational Methods for Scientists and Engineers
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
New York, NY
Springer New York
1999
|
| Ausgabe: | Third Edition |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Beschreibung: | 1. 1 Typical Problems of Data Analysis Every branch of experimental science, after passing through an early stage of qualitative description, concerns itself with quantitative studies of the phe nomena of interest, i. e. , measurements. In addition to designing and carrying out the experiment, an importal1t task is the accurate evaluation and complete exploitation of the data obtained. Let us list a few typical problems. 1. A study is made of the weight of laboratory animals under the influence of various drugs. After the application of drug A to 25 animals, an average increase of 5 % is observed. Drug B, used on 10 animals, yields a 3 % increase. Is drug A more effective? The averages 5 % and 3 % give practically no answer to this question, since the lower value may have been caused by a single animal that lost weight for some unrelated reason. One must therefore study the distribution of individual weights and their spread around the average value. Moreover, one has to decide whether the number of test animals used will enable one to differentiate with a certain accuracy between the effects of the two drugs. 2. In experiments on crystal growth it is essential to maintain exactly the ratios of the different components. From a total of 500 crystals, a sample of 20 is selected and analyzed |
| Beschreibung: | 1 Online-Ressource (XXXIV, 652 p) |
| ISBN: | 9781461214465 9781461271475 |
| DOI: | 10.1007/978-1-4612-1446-5 |
Internformat
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| 500 | |a 1. 1 Typical Problems of Data Analysis Every branch of experimental science, after passing through an early stage of qualitative description, concerns itself with quantitative studies of the phe nomena of interest, i. e. , measurements. In addition to designing and carrying out the experiment, an importal1t task is the accurate evaluation and complete exploitation of the data obtained. Let us list a few typical problems. 1. A study is made of the weight of laboratory animals under the influence of various drugs. After the application of drug A to 25 animals, an average increase of 5 % is observed. Drug B, used on 10 animals, yields a 3 % increase. Is drug A more effective? The averages 5 % and 3 % give practically no answer to this question, since the lower value may have been caused by a single animal that lost weight for some unrelated reason. One must therefore study the distribution of individual weights and their spread around the average value. Moreover, one has to decide whether the number of test animals used will enable one to differentiate with a certain accuracy between the effects of the two drugs. 2. In experiments on crystal growth it is essential to maintain exactly the ratios of the different components. From a total of 500 crystals, a sample of 20 is selected and analyzed | ||
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Datensatz im Suchindex
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| discipline | Physik |
| doi_str_mv | 10.1007/978-1-4612-1446-5 |
| edition | Third Edition |
| format | Electronic eBook |
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| spelling | Brandt, Siegmund Verfasser aut Data Analysis Statistical and Computational Methods for Scientists and Engineers by Siegmund Brandt Third Edition New York, NY Springer New York 1999 1 Online-Ressource (XXXIV, 652 p) txt rdacontent c rdamedia cr rdacarrier 1. 1 Typical Problems of Data Analysis Every branch of experimental science, after passing through an early stage of qualitative description, concerns itself with quantitative studies of the phe nomena of interest, i. e. , measurements. In addition to designing and carrying out the experiment, an importal1t task is the accurate evaluation and complete exploitation of the data obtained. Let us list a few typical problems. 1. A study is made of the weight of laboratory animals under the influence of various drugs. After the application of drug A to 25 animals, an average increase of 5 % is observed. Drug B, used on 10 animals, yields a 3 % increase. Is drug A more effective? The averages 5 % and 3 % give practically no answer to this question, since the lower value may have been caused by a single animal that lost weight for some unrelated reason. One must therefore study the distribution of individual weights and their spread around the average value. Moreover, one has to decide whether the number of test animals used will enable one to differentiate with a certain accuracy between the effects of the two drugs. 2. In experiments on crystal growth it is essential to maintain exactly the ratios of the different components. From a total of 500 crystals, a sample of 20 is selected and analyzed Physics Mathematical physics Economics / Statistics Mathematical Methods in Physics Numerical and Computational Physics Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences Statistics for Business/Economics/Mathematical Finance/Insurance Mathematische Physik Statistik Wirtschaft Statistik (DE-588)4056995-0 gnd rswk-swf Java Programmiersprache (DE-588)4401313-9 gnd rswk-swf Datenanalyse (DE-588)4123037-1 gnd rswk-swf Datenanalyse (DE-588)4123037-1 s Java Programmiersprache (DE-588)4401313-9 s 1\p DE-604 Statistik (DE-588)4056995-0 s 2\p DE-604 https://doi.org/10.1007/978-1-4612-1446-5 Verlag Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 2\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Brandt, Siegmund Data Analysis Statistical and Computational Methods for Scientists and Engineers Physics Mathematical physics Economics / Statistics Mathematical Methods in Physics Numerical and Computational Physics Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences Statistics for Business/Economics/Mathematical Finance/Insurance Mathematische Physik Statistik Wirtschaft Statistik (DE-588)4056995-0 gnd Java Programmiersprache (DE-588)4401313-9 gnd Datenanalyse (DE-588)4123037-1 gnd |
| subject_GND | (DE-588)4056995-0 (DE-588)4401313-9 (DE-588)4123037-1 |
| title | Data Analysis Statistical and Computational Methods for Scientists and Engineers |
| title_auth | Data Analysis Statistical and Computational Methods for Scientists and Engineers |
| title_exact_search | Data Analysis Statistical and Computational Methods for Scientists and Engineers |
| title_full | Data Analysis Statistical and Computational Methods for Scientists and Engineers by Siegmund Brandt |
| title_fullStr | Data Analysis Statistical and Computational Methods for Scientists and Engineers by Siegmund Brandt |
| title_full_unstemmed | Data Analysis Statistical and Computational Methods for Scientists and Engineers by Siegmund Brandt |
| title_short | Data Analysis |
| title_sort | data analysis statistical and computational methods for scientists and engineers |
| title_sub | Statistical and Computational Methods for Scientists and Engineers |
| topic | Physics Mathematical physics Economics / Statistics Mathematical Methods in Physics Numerical and Computational Physics Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences Statistics for Business/Economics/Mathematical Finance/Insurance Mathematische Physik Statistik Wirtschaft Statistik (DE-588)4056995-0 gnd Java Programmiersprache (DE-588)4401313-9 gnd Datenanalyse (DE-588)4123037-1 gnd |
| topic_facet | Physics Mathematical physics Economics / Statistics Mathematical Methods in Physics Numerical and Computational Physics Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences Statistics for Business/Economics/Mathematical Finance/Insurance Mathematische Physik Statistik Wirtschaft Java Programmiersprache Datenanalyse |
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