Fitting distributions to microbial contamination data collected with an unequal probability sampling design
نویسندگان
چکیده
منابع مشابه
Probability and Sampling Distributions
When an experiment is conducted, such as tossing coins, rolling a die, sampling for estimating the proportion of defective units, several outcomes or events occur with certain probabilities. These events or outcomes may be regarded as a variable which takes different values and each value is associated with a probability. The values of this variable depends on chance or probability. Such a vari...
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An empirical study has been carried out to decide about the performance of various estimators used in unequal probability sampling without replacement and a sample of size 2. The Hansen–Hurwitz estimator and simple random sampling method has also been compared in this study. Some suggestions have been given at the end.
متن کاملIntroduction to Probability Theory and Sampling Distributions
tatistical inference allows one to draw conclusions about the characteristics of a population on the basis of data collected from a sample of subjects from that population. Almost all the statistical inferences typically seen in the medical literature are based on probability models that connect summary statistics calculated using the observed data to estimates of parameter values in the popula...
متن کاملParametric Distributions of Complex Survey Data under Informative Probability Sampling
The sample distribution is defined as the distribution of the sample measurements given the selected sample. Under informative sampling, this distribution is different from the corresponding population distribution, although for several examples the two distributions are shown to be in the same family and only differ in some or all the parameters. A general approach of approximating the margina...
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ژورنال
عنوان ژورنال: Journal of Applied Microbiology
سال: 2012
ISSN: 1364-5072
DOI: 10.1111/jam.12019