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Naar efficiënte experimenten
Author(s) -
Hamaker Dr H. C.
Publication year - 1955
Publication title -
statistica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 39
eISSN - 1467-9574
pISSN - 0039-0402
DOI - 10.1111/j.1467-9574.1955.tb00737.x
Subject(s) - simple (philosophy) , computer science , relation (database) , mathematics , data mining , epistemology , philosophy
Summary Towards efficient experiments. Under industrial conditions, where we encounter large random fluctuations, large numbers of observations, and a multiplicity of influencing factors, a proper analysis of the data on a statistical basis has become an essential part of our experimental techniques, which ultimately leads to more efficient methods of experimentation. This is illustrated by 7 practical examples.The first 4 examples deal with simple experiments for comparing two batches of raw materials when disturbing factors such as a time trend must be eliminated. The last 3 examples discuss more complex cases, namely a three‐factor experiment in the foundry, a latin square experiment in nylon spinning, and a five‐factor experiment of a mixed kind on gear‐noise testing. An attempt is made to explain in a simple form the relation between the statistical analysis of and the technical conclusions to be drawn from the result of a properly designed experiment.