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Question
Which of the following errors is more serious and why?
Options
Sampling error
Non-Sampling error
Solution
Non-sampling errors are more serious than the Sampling Errors because the latter can be minimized by taking a larger sample. Non-sampling Errors emerge due to the use of faulty means of a collection of data, whereas, the Sampling Errors emerge due to the divergence between the estimated and the actual value of a parameter of a small-sized sample population. For example, errors due to personal biasness, misinterpretation of results, miscalculations, etc.
The Sampling Errors can be minimised by increasing the size of a small sample so that the difference between the actual and the estimated value is reduced. But the Non-sampling Errors are difficult to rectify as it would require the selection of a new sample and conducting a fresh survey. Thus, Non-sampling Errors are more serious than Sampling Errors.
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