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...
متن کاملSampling Probability and Inference
The second part of the book looks into the probabilistic foundation of statistical analysis, which originates in probabilistic sampling, and introduces the reader to the arena of hypothesis testing. Chapter 5 explores the main random and controllable source of error, sampling, as opposed to non-sampling errors, potentially very dangerous and unknown. It shows the statistical advantages of extra...
متن کاملModelling proportionate growth
An important question in biology is how the relative size of different organs is kept nearly constant during growth of an animal. This property, called proportionate growth, has received increased attention in recent years. We discuss our recent work on a simple model where this feature comes out quite naturally from local rules, without fine tuning any parameter. The patterns produced are comp...
متن کاملA Probability Sampling Approach for Variance Minimization
A number of techniques for probability sampling without replacement (SWOR) have been suggested, although it is not clear which method is consistently superior in terms of statistical efficiency. Rao and Bayless (1969) empirically studied the stability of estimators of the population total for a variety of methods of unequal probability SWOR when selecting two units per stratum. One of their maj...
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...
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ژورنال
عنوان ژورنال: College & Research Libraries News
سال: 1993
ISSN: 2150-6698,0099-0086
DOI: 10.5860/crln.54.6.322