Dorfman scheme, Advanced Statistics

Assignment Help:

An approach to investigations designed to recognize a particular medical condition in the large population, usually by means of a blood test, which might result in the considerable saving in the number of tests carried out. In its place of testing each person separately, blood samples from, k people are pooled and analysed jointly. If the test is negative, this test clears k people. If the test is positive in nature then each of the k individual blood samples should be tested separately, and in all k 1 tests are needed for these k people. If the probability of the positive test (p) is less, the scheme is likely to give the outcome in far fewer tests being essential. For instance, if p 0:01, it can be shown that the value of k minimizes the expected number of tests per person is 11, and that expected number of the tests is 0.2, resulting in 80%saving in the number of tests compared with the testing each and every  individual separately.


Related Discussions:- Dorfman scheme

Efficiency, This term applied in the context of comparing the different met...

This term applied in the context of comparing the different methods and techniques of estimating the same parameter; the estimate with the lowest variance being regarded as the mos

Collapsing categories, Collapsing categories : A procedure generally applie...

Collapsing categories : A procedure generally applied to contingency tables in which the two or more row or column categories are combined, in number of cases so as to yield the re

Survey Design, Hello, I have a solution for a Survey Design (proposal) assi...

Hello, I have a solution for a Survey Design (proposal) assignment and looking for an expert that can look at it and correct it in case if it is wrong. Do you have this kind of ser

Time series, relevancy of time series in business management

relevancy of time series in business management

Traditional linear model, What is a Generalized Linear Model? A traditional...

What is a Generalized Linear Model? A traditional linear model is of the form where Yi is the response variable for the ith observation, xi is a column vector of explanator

Indirect standardization, Indirect standardization is the procedure of adju...

Indirect standardization is the procedure of adjusting the crude mortality or morbidity rate for one or more variables by making use of a known reference population. It may, for in

Non-identified response, Non-identified response is a term used to signify...

Non-identified response is a term used to signify censored observations in survival data, which are not independent of the endpoint of the interest. Such observations can happen f

Dirichlet process mixture models, The nonparametric Bayesian inference appr...

The nonparametric Bayesian inference approach to using the finite mixture distributions for modelling data suspected of the containing distinct groups of observations; this approac

Multimodal distribution, Multimodal distribution is the probability distri...

Multimodal distribution is the probability distribution or frequency distribution with number of modes. Multimodality is frequently taken as an indication which the observed di

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd