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Preface | |
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The importance of uncertainty in science and technology | |
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Measurement matters | |
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Review | |
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Measurement fundamentals | |
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The system of units of measurement | |
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Scientific and engineering notations | |
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Rounding and significant figures | |
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Another way of expressing proportional uncertainty | |
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Review | |
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Terms used in measurement | |
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Measurement and related terms | |
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Review | |
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Introduction to uncertainty in measurement | |
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Measurement and error | |
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Uncertainty is a parameter that characterises the dispersion of values | |
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Standard deviation as a basic measure of uncertainty | |
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The uncertainty in the estimate of uncertainty | |
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Combining standard uncertainties | |
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Review | |
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Some statistical concepts | |
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Sampling from a population | |
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The least-squares model and least-squares fitting | |
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Covariance and correlation | |
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Review | |
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Systematic errors | |
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Systematic error revealed by specific information | |
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Systematic error revealed by changed conditions | |
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Review | |
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Calculation of uncertainties | |
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The measurand model and propagation of uncertainties from inputs to measurand | |
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Correlated inputs | |
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Review | |
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Probability density, the Gaussian distribution and central limit theorem | |
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Distribution of scores when tossing coins or dice | |
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General properties of probability density | |
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The uniform or rectangular distribution | |
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The Gaussian distribution | |
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Experimentally observed non-Gaussian distributions | |
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The central limit theorem | |
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Review | |
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Sampling a Gaussian distribution | |
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Sampling the distribution of the mean of a sample of size n, from a Gaussian population | |
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Sampling the distribution of the variance of a sample of size n, from a Gaussian population | |
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Sampling the distribution of the standard deviation of a sample of size n, from a Gaussian population | |
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Review | |
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The t-distribution and Welch-Satterthwaite formula | |
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The coverage interval for a Gaussian distribution | |
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The coverage interval using a t-distribution | |
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The Welch-Satterthwaite formula | |
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Review | |
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Case studies in measurement uncertainty | |
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Reporting measurement results | |
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Determination of the coefficient of static friction for glass on glass | |
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A crater-formation experiment | |
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Determination of the density of steel | |
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The rate of evaporation of water from an open container | |
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Review | |
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Solutions to exercises | |
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95% Coverage factors, k, as a function of the number of degrees of freedom, v | |
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Further discussion following from the Welch-Satterthwaite formula | |
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References | |
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Index | |