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# Sampling Errors

Sampling Error

**Sampling Error** is the deviation of the sample statistics from the population parameters (i.e. the true value)

Biased Sampling Error

**Biased Sampling Error** is the error that is systematic in nature and is introduced in the process of sampling. Bias could be introduced either by researcher or by respondent or by the sampling method. Minimizing biased sampling error should be the first priority in any sampling strategy as it is not possible to capture it using statistics

Unbiased Sampling Error

**Unbiased Sampling Error** is the non-systematic error which is introduced by the fact that even within a population the individual objects are different. This is the error which occurs because of chance as we only study a part of the population and not the whole population. Provided we have an unbiased sample, statistics could help us determine this error

An application-oriented question on the topic along with responses can be seen below. The best answer was provided by Natwar Lal.

Applause for the respondents - Natwar Lal.

Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.

## Question

## Vishwadeep Khatri

Q. 205

Let us consider a situation where drawing/testing large number of samples is disadvantageous and the Lean Six Sigma analyst has decided to use limited samples. What are the precautions that the analyst should take so as to limit biased and unbiased sampling errors ? Explain with suitable examples.Note for website visitors- Two questions are asked every week on this platform. One on Tuesday and the other on Friday.All questions so far can be seen here - https://www.benchmarksixsigma.com/forum/lean-six-sigma-business-excellence-questions/Please visit the forum home page at https://www.benchmarksixsigma.com/forum/ to respond to the latest question open till the next Tuesday/ Friday evening 5 PM as per Indian Standard Time.The best answer is always shown at the top among responses and the author finds honorable mention in our Business Excellence dictionary at https://www.benchmarksixsigma.com/forum/business-excellence-dictionary-glossary/ along with the related term.## Link to comment

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