Estimating Bark Eating Caterpillars Indarbela quadrinotata (walker) in Populus deltoides Using Ranked Set Sampling
نویسندگان
چکیده
منابع مشابه
Estimation of Variance of Normal Distribution using Ranked Set Sampling
Introduction In some biological, environmental or ecological studies, there are situations in which obtaining exact measurements of sample units are much harder than ranking them in a set of small size without referring to their precise values. In these situations, ranked set sampling (RSS), proposed by McIntyre (1952), can be regarded as an alternative to the usual simple random sampling ...
متن کاملThe larvae of Indarbela quadrinotata Walker bores into the shoot of Santalum album L. and form
India’s forest cover was estimated to be about 67.701 million hectares or 22.8 percent of the country’s land area and other wooded lands comprise of 4.11 million ha (UNEP Report, 2000). The dense forests in almost all the major states has been reduced and forest degradation is a matter of serious concern now. Principal plantation species such as Acacia spp., Eucalyptus spp. and Tectona grandis ...
متن کاملMultistage Median Ranked Set Sampling for Estimating the Population Median
We modify RSS to come up with new sampling method, namely, Multistage Median Ranked Set Sampling (MMRSS). The MMRSS was suggested for estimating the population median and to increase the efficiency of the estimator for specific value of the sample size. The MMRSS was compared to the Simple Random Sampling (SRS), Ranked Set Sampling (RSS) and Median Ranked Set Sampling (MRSS) methods. It is foun...
متن کاملParametric Ranked Set Sampling*
Ranked set sampling was introduced by McIntyre (1952, Australian Journal of Agricultural Research, 3, 385-390) as a cost-effective method of selecting data if observations are much more cheaply ranked than measured. He proposed its use for estimating the population mean when the distribution of the data was unknown. In this paper, we examine the advantage, if any, that this method of sampling h...
متن کاملUnbalanced ranked set sampling for estimating a population proportion.
The application of ranked set sampling (RSS) techniques to data from a dichotomous population is currently an active research topic, and it has been shown that balanced RSS leads to improvement in precision over simple random sampling (SRS) for estimation of a population proportion. Balanced RSS, however, is not in general optimal in terms of variance reduction for this setting. The objective o...
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ژورنال
عنوان ژورنال: Indonesian Journal of Applied Statistics
سال: 2020
ISSN: 2621-086X
DOI: 10.13057/ijas.v3i1.35370