Precision Measurement and Calibration: Statistical concepts and procedures, H. H. Ku, edU.S. Government Printing Office, 1968 |
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Page iii
... source for the many scientists and engineers who fill responsible posi- tions in standards laboratories . A. V. ASTIN , Director Preface The general plan for this compilation has been reviewed III The Interpretation of Collaborative ...
... source for the many scientists and engineers who fill responsible posi- tions in standards laboratories . A. V. ASTIN , Director Preface The general plan for this compilation has been reviewed III The Interpretation of Collaborative ...
Page x
... source of difficulty . The recommendations given in the Expression of the Uncertainties of Final Results ( 1.6 ) and the tabular guide to commonly used terms and expressions ( 1.7 ) are included to serve as references to experimenters ...
... source of difficulty . The recommendations given in the Expression of the Uncertainties of Final Results ( 1.6 ) and the tabular guide to commonly used terms and expressions ( 1.7 ) are included to serve as references to experimenters ...
Page 8
... sources of vari- ability , in the limit , we cannot differentiate between instrument precision , variability from extraneous sources , or variability of the standard . OBSERVATION EQUATIONS 11-12 201 11-12 20 01 = +1.0 -. 8-7.
... sources of vari- ability , in the limit , we cannot differentiate between instrument precision , variability from extraneous sources , or variability of the standard . OBSERVATION EQUATIONS 11-12 201 11-12 20 01 = +1.0 -. 8-7.
Page 13
... sources , or bias ; and overall limits to the uncer- tainty of independent measurements . A PARTICULAR MEASUREMENT INSTRUMENT ... Al METHOD STANDARDS ... 2001,2002,1001 PROCEDURES ... CLEAN & WEIGH USING 52 - I SERIES OPERATOR ... P ...
... sources , or bias ; and overall limits to the uncer- tainty of independent measurements . A PARTICULAR MEASUREMENT INSTRUMENT ... Al METHOD STANDARDS ... 2001,2002,1001 PROCEDURES ... CLEAN & WEIGH USING 52 - I SERIES OPERATOR ... P ...
Page 20
... SOURCES BEING NEGLIGIBLE . TEST COMPLETED AUGUST 17 , 1966 WASHINGTON , D.C. 20234 FOR THE DIRECTOR , PAUL E. PONTIUS , CHIEF MASS AND VOLUME SECTION DIFF FROM NOMINAL ( mg ) 22 PROCESS IN CONTROL CHECK ON A 200g STANDARD 20 Figure 61 ...
... SOURCES BEING NEGLIGIBLE . TEST COMPLETED AUGUST 17 , 1966 WASHINGTON , D.C. 20234 FOR THE DIRECTOR , PAUL E. PONTIUS , CHIEF MASS AND VOLUME SECTION DIFF FROM NOMINAL ( mg ) 22 PROCESS IN CONTROL CHECK ON A 200g STANDARD 20 Figure 61 ...
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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 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.