Comparison of Precision of Double Sampling and Sampling on Successive Occasions

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Year:
2014
Type of Publication:
Article
Keywords:
Double Sampling, Comparison, Predetermined, Alternating and Occasion
Authors:
Oshungade Isaac Olayiwola; Moses Adedapo Ajayi; Adekunle Nurudeen Masopa
Journal:
IJISM
Volume:
2
Number:
4
Pages:
397-401
Month:
July
Abstract:
The research was carried out on comparison of precision of double sampling and sampling on successive occasions for some predetermined values of the correlation coefficient. Double sampling for regression and ratio estimators were computed and compared with the result obtained from sampling on successive occasion. It was discovered that double sampling for regression has higher precision than double sampling for ratio even when the correlation coefficient is as low as 0.25. On the contrary double sampling for regression is not as good as sampling on successive occasions in terms of precision except for situations when percentage of the matched units is 90% regardless of the value of correlation coefficient.

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