Bootstrap: The data-based simulation method/technique for the statistical inference which can be used to study the variability of the estimated characteristics of the probability distribution of a set of observations and give con?dence intervals for the parameters in situations where these are difficult or impossible to derive in the usual manner. (The use of term bootstrap derives from the phrase 'to pull oneself up by the one's bootstraps'.) The general idea and approach of the procedure involves sampling with the replacement to produce random samples of size n from the original data, x1; x2; ... ; xn; each of these is called as a bootstrap sample and each gives an approximate idea of the parameter of interest. Repeating the process the large number of times provides the desired information on the variability of the estimator and the approximate 95% con?dence interval can, for instance, be derived from the 2.5% and 97.5% quantiles of the replicate values.

Posted Date: 7/26/2012 5:46:22 AM | Location : United States

Ask an Expert

Related Discussions:- Bootstrap, Assignment Help, Ask Question on Bootstrap, Get Answer, Expert's Help, Bootstrap Discussions

Write discussion on Bootstrap
Your posts are moderated

Write your message here..

Related Questions

LASPEYERES QUANTITY INDEX, HOW TO OBTAIN THE LASPEYRES QUANTITY INDEX AND T... HOW TO OBTAIN THE LASPEYRES QUANTITY INDEX AND THE FORMULA

Compute the portfolio expected return, (a) You are trying to develop a stra... (a) You are trying to develop a strategy for investing in two different stocks, Stock A and Stock B. The anticipated annual return for a $1000 investment in each stock under four

Probability weighting, Probability weighting is the procedure of attaching... Probability weighting is the procedure of attaching weights equal to inverse of the probability of being selected, to each respondent's record in the sample survey. These weights

Determine the optimal strategy for the breeder, Consider a decision faced b... Consider a decision faced by a cattle breeder. The breeder must decide how many cattle he should sell in the market each year and how many he should retain for breeding purposes. S

Re-reference a series, re-reference all these indexes re-reference all these indexes

Bioinformatics, Bioinformatics : Essentially the application of the informa... Bioinformatics : Essentially the application of the information theory to biology to deal with the deluge of the information resulting from the advances in molecular biology. The m

Compound symmetry, Compound symmetry : The property possessed by the varian... Compound symmetry : The property possessed by the variance-covariance matrix of the set of multivariate data when its chief diagonal elements are equal to each other, and in additi

Mosaic displays, Mosaic displays  is the graphical display of the standardi... Mosaic displays  is the graphical display of the standardized residuals from the fitting a log-linear model to a contingency table in which the colour and outline of the mosaic's '

Correlated failure times, Data which occur when failure period is recorded ... Data which occur when failure period is recorded which are dependent. Such type of data can arise in number contexts, for instance, in epidemiological cohort studies in which th

Homoscedasticity - reasons for screening data, Homoscedasticity - Reasons f... Homoscedasticity - Reasons for Screening Data Homoscedasticity is the assumption that the variability in scores for a continuous variable is roughly the same at all values of