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define non-Sampling Error in statistics

Question

define non-Sampling Error in statistics

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Solution

Non-sampling error in statistics refers to the error that arises during data collection, causing the data to differ from the true values. This type of error can occur in any kind of survey or data collection process and is not related to the process of selecting a sample from the population.

Non-sampling errors can be caused by a variety of factors, including:

  1. Response errors: These occur when respondents provide inaccurate, misleading or incomplete responses.

  2. Measurement errors: These occur when the method of obtaining measurements or observations is faulty, which can lead to incorrect data.

  3. Processing errors: These occur during the process of data collection, recording, coding and analysis.

  4. Non-response errors: These occur when some respondents included in the sample do not respond or cannot be reached.

It's important to note that unlike sampling errors, non-sampling errors cannot be reduced by increasing the sample size. Instead, they must be addressed through improvements in the data collection process.

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