Precision Measurement and Calibration: Statistical concepts and procedures, H. H. Ku, edU.S. Government Printing Office, 1968 |
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Page v
... Four works too long to be included here are represented by titles and abstracts in Section 7. The interpretive fore- word appearing at the beginning of each of the first six sections comments on the individual papers and thus ...
... Four works too long to be included here are represented by titles and abstracts in Section 7. The interpretive fore- word appearing at the beginning of each of the first six sections comments on the individual papers and thus ...
Page vi
... four national radium standards ( Part 2 ) . Connor , W. S. , and Youden , W. J. 108 . . . . 2.6 . Physical measurements and experiment design . Youden , W. J. 117 3. Interlaboratory Tests 3.1 . Graphical diagnosis of interlaboratory test ...
... four national radium standards ( Part 2 ) . Connor , W. S. , and Youden , W. J. 108 . . . . 2.6 . Physical measurements and experiment design . Youden , W. J. 117 3. Interlaboratory Tests 3.1 . Graphical diagnosis of interlaboratory test ...
Page 10
... four different values , none of which alone can be considered the best measure of the difference , but considered as a group they can tell us something about the instrument . Continuing to record the indicated difference between two ...
... four different values , none of which alone can be considered the best measure of the difference , but considered as a group they can tell us something about the instrument . Continuing to record the indicated difference between two ...
Page 16
... FOUR OBJECTS Figure 47 When we intercompare four objects , for example , four 1 - kg standards , we could use six observations . Weight S is compared with A for a1 , S with B for a2 and so on . If S were a standard and the rest unknowns ...
... FOUR OBJECTS Figure 47 When we intercompare four objects , for example , four 1 - kg standards , we could use six observations . Weight S is compared with A for a1 , S with B for a2 and so on . If S were a standard and the rest unknowns ...
Page 22
... four or more independent measurements are involved , such adjusted values tend to be normally distributed to a very good ap- proximation , so that the accuracy of such final results can ordinarily be characterized satisfactorily by in ...
... four or more independent measurements are involved , such adjusted values tend to be normally distributed to a very good ap- proximation , so that the accuracy of such final results can ordinarily be characterized satisfactorily by in ...
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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.