Relationship Between Sampling Area, Sampling Size Vs Precision, And Application Of Analysis

936 WordsApr 21, 20164 Pages
Relationship between sampling area, sampling size vs precision, and application of analysis Introduction In sampling design, how large an area sampled and how many replicates taken (i.e. sampling size) are important factors to consider. Basic sampling design takes a large area and high number of randomized replicate samples to aim for a representative sample of the population examined. Precision is important for the sampling size to be considered representative of the population. Precision is the degree of concordance among a number of estimates of the same population (repeatability). It is used to estimate the number of replicate samples required for it to be representative of the population. Precision is defined as Standard Error divided by Mean. P=SE/x ̅ The aim of this experiment is to investigate the relationship between sampling area, sampling size, and precision. The hypothesis of this experiment is that a larger transect and a higher number of replicates will reduce imprecision. The objective of this experiment is to choose an appropriate transect size and optimum number of replicates for a study of population density of Holothuria scabra at Trikora Beach based on a pilot study from Pulau Jemaja, Riau, Indonesia. Holothuria scabra sea cucumbers are harvested in South East Asia for food. They are highly sought after by local fisheries in the region and are under threat of extinction due to increased levels of harvesting and collection. Hence, precise estimates

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