Precision Measurement and Calibration: Statistical concepts and procedures, H. H. Ku, edU.S. Government Printing Office, 1968 |
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Page iv
... approximately 600 pages , will still be small enough for convenient handling in the laboratory . The compilation consists primarily of original papers by NBS authors which have been reprinted by photoreproduction , with occasional ...
... approximately 600 pages , will still be small enough for convenient handling in the laboratory . The compilation consists primarily of original papers by NBS authors which have been reprinted by photoreproduction , with occasional ...
Page 33
... approximately 50 percent of the measurements 2.0 1.8 -- .4 .2 O 2.0 1.8 1.6 1.4 1.6 T 0 1.4 - 1.2 - μ = T + 4 , σ = .2 -2 -1 0 1 2 3 e = x - t 1.0 .8 .6 9 .4 ་ .2 1.2 d : μ = τ + 2 , σ = .72 1.0 e : μ = 5 + 2 , σ = 172 0 -6 -5 -4 -3 -2 ...
... approximately 50 percent of the measurements 2.0 1.8 -- .4 .2 O 2.0 1.8 1.6 1.4 1.6 T 0 1.4 - 1.2 - μ = T + 4 , σ = .2 -2 -1 0 1 2 3 e = x - t 1.0 .8 .6 9 .4 ་ .2 1.2 d : μ = τ + 2 , σ = .72 1.0 e : μ = 5 + 2 , σ = 172 0 -6 -5 -4 -3 -2 ...
Page 44
... approximately normal with △ corresponding to 2 " o " or even 3 " . " Nevertheless , I believe that you will agree that if , in the hypothetical case under discussion , the checkbook balance , with an allowance of $ 322 for checks ...
... approximately normal with △ corresponding to 2 " o " or even 3 " . " Nevertheless , I believe that you will agree that if , in the hypothetical case under discussion , the checkbook balance , with an allowance of $ 322 for checks ...
Page 45
... approximately equal in size , and ( c ) one feels " fairly sure " that the indi- vidual errors do not fall outside of their respective ranges , then my personal feeling is that the " uni- form " method is probably a wee bit conservative ...
... approximately equal in size , and ( c ) one feels " fairly sure " that the indi- vidual errors do not fall outside of their respective ranges , then my personal feeling is that the " uni- form " method is probably a wee bit conservative ...
Page 54
... approximately correct . Thus reasons are found for discarding or modifying results that do violence to the preconceived opinion , while those that accord with it go untested . An observer who thinks that he knows approximately what he ...
... approximately correct . Thus reasons are found for discarding or modifying results that do violence to the preconceived opinion , while those that accord with it go untested . An observer who thinks that he knows approximately what he ...
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Common terms and phrases
adjusted values analysis applied arithmetic mean ASTM average b₁ b₁x bias Bureau of Standards calculated calibration Churchill Eisenhart comparison components computed confidence interval confidence limits constant control chart correct corresponding curve degrees of freedom determinations effect equal equation evaluation example experiment experimental factors Figure formulas gage block given imprecision independent intercept interlaboratory interval estimate labora laboratory large number Least Squares limiting mean linear magnitude mass materials mathematical meas measurement process ment National Bureau normal distribution number of measurements observations obtained operation ORDP pair paper parameters percent plotted points population possible quantity radium standard range ratio relationship reported sample scores sequence Shewhart shown single slope sources specimens standard deviation standard error stations statistical control systematic error Table temperature test procedure tion tory true value uncertainty urement variables variance W. J. Youden W₁ weight
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Page 45 - ON THE ALGEBRAICAL AND NUMERICAL THEORY OF ERRORS OF OBSERVATIONS AND THE COMBINATION OF OBSERVATIONS.
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Page 72 - Manual on Quality Control of Materials (American Society for Testing and Materials, Philadephia, 1951).
Page 36 - It is another matter to formulate specific statements regarding these statistical characteristics of measurement processes. 4.2. 1 Precision — Precision may be stated in terms of an index of precision of the form ±a, where a is some positive number. The numerical value of a in any such index of precision will be smaller the more closely bunched are the individual measurements of a process. However, any such index must have a clearly understandable interpretation regarding variability of measurements....
Page 31 - Absolute certainty is a privilege of uneducated minds — and fanatics. It is, for scientific folk, an unattainable ideal.