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With the average American woman's height (20 years and older) at about 5 ft 4 in (162.1 cm) (Department of Health 2012), both standard and catalog size ranges attempt to address a variety of weights or builds as well as providing for the "shorter-than-average" height woman with "petite" and "half-sizes". However "taller-than-average" women may ...
BS 3666:1982, the standard for women's clothing, is rarely followed by manufacturers as it defines sizes in terms of hip and bust measurements only within a limited range. This has resulted in variations between manufacturers and a tendency towards vanity sizing .
This so-called range rule is useful in sample size estimation, as the range of possible values is easier to estimate than the standard deviation. Other divisors K ( N ) of the range such that s ≈ R / K ( N ) are available for other values of N and for non-normal distributions.
In descriptive statistics, the range of a set of data is size of the narrowest interval which contains all the data. It is calculated as the difference between the largest and smallest values (also known as the sample maximum and minimum). [1] It is expressed in the same units as the data. The range provides an indication of statistical ...
The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data, and the need for it to offer sufficient statistical power. In complex studies ...
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The simplest case of a normal distribution is known as the standard normal ... with normal distribution of mean 0 and variance 1/2 falling in the range ...
Robust measures of scale can be used as estimators of properties of the population, either for parameter estimation or as estimators of their own expected value.. For example, robust estimators of scale are used to estimate the population standard deviation, generally by multiplying by a scale factor to make it an unbiased consistent estimator; see scale parameter: estimation.
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