Efficient body fat estimation using multistage pair ranked set sampling

2017 ◽  
Vol 28 (1) ◽  
pp. 223-234 ◽  
Author(s):  
M Mahdizadeh ◽  
Ehsan Zamanzade
Keyword(s):  
Body Fat ◽  
Random Sampling ◽  
Sampling Methods ◽  
Simple Random Sampling ◽  
Ranked Set Sampling ◽  
Pair Ranked Set Sampling ◽  
The Mean ◽  
Medical Dataset

Rank-based sampling methods are applicable in settings where precise measurements are expensive, but small sets of units can be accurately ranked at negligible cost. This article introduces one such a design, called multistage pair ranked set sampling. It mitigates ranking burden associated with a competitor scheme, namely multistage ranked set sampling. The mean estimator in multistage pair ranked set sampling is unbiased, and under perfect rankings has variance no larger than its simple random sampling counterpart. Although the suggested mean estimator is outperformed by its multistage ranked set sampling analog in terms of precision under perfect rankings, the situation may be reversed if cost considerations are taken into account. The methodology is illustrated using a medical dataset.

scholarly journals Median Double Ranked Set Sampling Method

2018 ◽  
Vol 14 (1) ◽  
pp. 7503-7512
Author(s):  
Nuran Medhat Al-Mawan ◽  
El-Houssainy Rady ◽  
Nasr Rashwan
Keyword(s):  
Random Sampling ◽  
Traditional Method ◽  
Sampling Method ◽  
Sampling Methods ◽  
Cost Effective ◽  
Simple Random Sampling ◽  
Ranked Set Sampling ◽  
Median Ranked Set Sampling ◽  
Observational Economy ◽  
The Mean

In environmental monitoring and assessment, the main focus is to achieve observational economy and to collect data with unbiased, efficient and cost-effective sampling methods. Ranked set sampling (RSS) is one traditional method that is mostly used for accomplishing observational economy. In this article, we suggested new sampling method called median double ranked set sampling (MDRSS). The newly suggested sampling method MDRSS is compare to the simple random sampling (SRS), RSS, double ranked set sampling (DRSS), median ranked set sampling (MRSS). When the underlying distributions are symmetric and asymmetric, it is shown that, the variance of the mean estimator under MDRSS is always less than the variance of the mean estimator based on SRS and the other methods.

Ratio-Type Estimation Using Scrabled Auxiliary Variables in Stratification Under Simple Random Sampling and Ranked Set Sampling

2022 ◽  
pp. 62-85
Author(s):  
Carlos N. Bouza-Herrera ◽  
Jose M. Sautto ◽  
Khalid Ul Islam Rather
Keyword(s):  
Random Sampling ◽  
Mean Squared Error ◽  
Simple Random Sampling ◽  
Ranked Set Sampling ◽  
Auxiliary Variables ◽  
Mild Conditions ◽  
Squared Error ◽  
The Mean ◽  
Better Than

This chapter introduced basic elements on stratified simple random sampling (SSRS) on ranked set sampling (RSS). The chapter extends Singh et al. results to sampling a stratified population. The mean squared error (MSE) is derived. SRS is used independently for selecting the samples from the strata. The chapter extends Singh et al. results under the RSS design. They are used for developing the estimation in a stratified population. RSS is used for drawing the samples independently from the strata. The bias and mean squared error (MSE) of the developed estimators are derived. A comparison between the biases and MSEs obtained for the sampling designs SRS and RSS is made. Under mild conditions the comparisons sustained that each RSS model is better than its SRS alternative.

scholarly journals The Effect Of Milenial Generation Characteristics Of Job Satisfaction Relations And Employee Engagement

2020 ◽  
Vol 1 (4) ◽  
pp. 239-248
Author(s):  
Alfatih Sikki Manggabarani ◽  
Faisal Marzuki ◽  
Mahendro
Keyword(s):  
Employee Engagement ◽  
Random Sampling ◽  
Employee Satisfaction ◽  
Sampling Methods ◽  
Simple Random Sampling ◽  
Partial Least Square ◽  
Least Square ◽  
Analysis Method ◽  
Partial Least Square Analysis ◽  
Analysis Technique

This research is a quantitative study that aims to determine the Millennial Generation Characteristics of Employee Engagement. The population in this study The study was conducted by taking samples of Millennials who are actively working at Micro Finance companies with a total of 150 respondents. The sample size was taken as many as 150 respondents, with probability sampling methods especially simple random sampling. Data collection was carried out through questionnaires. The analysis technique used is the PLS (Partial Least Square) analysis method. The results of this study indicate that the value of R- Square (R2) Employee Engagement is 0.786 and Employee Satisfaction is 0.647 thus indicating that the contribution of Grit, Worklife Balance, and Jon Resources variables to Employee Engagement and Employee Satisfaction are 0.786 or 78.6% and 0.647 or 64.7%. And the rest is influenced by other factors not examined.

scholarly journals Attitude of Prospective Teachers towards Inclusive Education for Children with Disabilities In Relation To Gender and Academic Stream

2017 ◽  
Vol 4 (3) ◽  
Author(s):  
Dr. Harneet Billing
Keyword(s):  
Inclusive Education ◽  
Prospective Teachers ◽  
Random Sampling ◽  
Children With Disabilities ◽  
Simple Random Sampling ◽  
Survey Method ◽  
Teacher Trainees ◽  
The Mean ◽  
And Gender ◽  
Descriptive Survey

The present study aimed to investigate the attitude of prospective teachers towards inclusive education in relation to gender and academic stream. The respondents were teacher trainees of district Mohali of Punjab. A sample of 100 B.Ed students (N=50 boys and 50 girls) by employing simple random sampling. Descriptive survey method was employed; attitude towards inclusive education scale was used, Analysis of Variance and for the significant F- ratio, the t-test was used for testing the significance of difference between the mean scores different groups on variables under study. The study revealed that (a) There exists significant differences in attitude of prospective teachers towards the concept of inclusive education for children with disabilities with respect to gender (b) There exists no significant differences in attitude of prospective teachers towards the concept of inclusive education for children with disabilities with respect to academic stream and (c) There exists no significant differences in attitude of prospective teachers towards the concept of inclusive education for children with disabilities with respect to interaction effect of academic stream and gender.

scholarly journals AGROFORESTRI BERBASIS ROTAN TERHADAP SOSIAL EKONOMI MASYARAKAT DI BARITO SELATAN

2017 ◽  
Vol 4 (1) ◽  
pp. 93
Author(s):  
Johanna Maria Rotinsulu ◽  
Sosilawaty Sosilawaty ◽  
Yanarita Yanarita
Keyword(s):  
Random Sampling ◽  
Sampling Methods ◽  
Simple Random Sampling ◽  
The Other ◽  
Average Yield ◽  
Natural Conditions ◽  
Central Kalimantan ◽  
Economic Level ◽  
The Village ◽  
Society Research

South Barito is an area of rattan and rattan production center of the province of Central Kalimantan, on the other hand is one area that has natural conditions very conducive to the development of rattan. This study reveals how patterns in addition to planting and processing of rattan traditionally also analyze the socio-economic level of society. Research conducted in South Barito regency, District Karau in Two Villages is Bangkuang and New Salat. The village of the second sample is determined gardens and population are farmers who cultivate cane with sampling methods by simple random sampling, because the peasant population is homogeneous, the number of samples in each village 34 respondents or 68 farmers overall. The result showed that in general the rattan garden where the studies were not well-maintained, where the average of respondents (45%) said that maintenance is only performed at the time of going to the harvesting or one for rattan planting. Besides the low price of rattan is led to a reduction of land management / rattan gardens intensively. and production of rattan average yield of 2.6 tons ha-1 or 245.5 clumps of cane ha-1. For the villagers of business administration studies despite conditions that are considered less favorable, but they still look forward to the Government's policy to remain aligned to the Farmers Rattan. In addition, because cane is inherited and used as a hallmark of South Barito society in general.Barito Selatan merupakan daerah penghasil rotan dan sentra produksi rotan provinsi Kalimantan Tengah, selain itu merupakan salah satu wilayah yang memiliki kondisi alam yang sangat mendukung bagi perkembangan rotan. Penelitian ini selain untuk mengungkapkan bagaimana pola tanam dan pengolahan rotan secara tradisional juga  menganalisis tingkat sosial ekonomi masyarakat. Penelitian dilaksanakan di Kabupaten Barito Selatan, Kecamatan Karau di Dua Desa yaitu Bangkuang dan Salat Baru. Dari kedua Desa tersebut ditentukan kebun sampel dan populasi masyarakat  yaitu  petani yang mengusahakan rotan dengan metode pengambilan sampel secara simple random sampling, karena populasi petani bersifat homogen, jumlah sampel di masing-masing desa 34 responden atau keseluruhan 68 petani. Dari hasil penelitian diperoleh bahwa pada umumnya kebun rotan di tempat penelitian tersebut tidak terpelihara dengan baik, dimana rata-rata responden (45%) menyebutkan bahwa pemeliharaan hanya dilakukan pada saat akan dilakukan pemanenan atau satu kali selama rotan itu di tanam. Selain itu rendahnya  harga  rotan  sangat  berdampak pada berkurangnya pengelolaan lahan/kebun rotan secara intensif. dan hasil produksi rotan rata-rata diperoleh 2,6 ton ha-1 atau 245,5 rumpun rotan ha-1. Bagi masyarakat Desa studi walaupun kondisi tataniaga yang dianggap kurang menguntungkan, namun mereka masih berharap kebijakan Pemerintah tetap berpihak kepada Petani Rotan. Di samping itu  karena pada umumnya rotan merupakan warisan dan digunakan sebagai ciri khas masyarakat Barito Selatan.

scholarly journals Analisis Pengaruh Pengeluaran Pemerintah Terhadap Pertumbuhan Ekonomi dan Indeks Pembangunan Manusia di Indonesia

2016 ◽  
Vol 1 (1) ◽  
pp. 39-50
Author(s):  
Ginanjar Aji Nugroho
Keyword(s):  
Economic Growth ◽  
Human Development ◽  
Human Development Index ◽  
Random Sampling ◽  
Simple Random Sampling ◽  
Government Expenditures ◽  
Analysis Method ◽  
Statistical Average ◽  
Development Index ◽  
The Mean

The puposes of this study are (1) to analyze the effects of government expenditures on education, health and infrastructure sectors toward economic growth and human development index in Indonesia, (2) to investigate the impacts of economic growth on human dvelopment index, (3) and to examine the effects of government expenditures on education, health and infrastructure sectors toward human development index both directly and through the economic growth. The study used samples from twenty provinces, which were selected using simple random sampling, divided into two groups; the first group comprised higher HDI provinces; the second group consisted of lower HDI provinces. To examine the model, the study applied path analysis method. The mean test was also applied to determine whether there were statistical average differences between the two groups. The results of this study show different responds between the higher HDI provinces and lower HDI provinces. The higher HDI provinces show that government expenditures on health and infrastructure have positive and significant impacts on human development index through economic growth indirectly; on the other hand, the lower HDI provinces show that only expenditure on education gives positive and significant impacts on human development index. Meanwhile, the economic growth shows positive and significant impacts on human development index in both higher HDI and lower HDI provinces.  Abstrak Penelitian ini bertujuan untuk: (1).Mengetahui pengaruh pengeluaran pemerintah pada sektor pendidikan, kesehatan dan infrastruktur terhadap pertumbuhan ekonomi dan indeks pembangunan manusia (IPM) di Indonesia, (2).Mengetahui pengaruh pertumbuhan ekonomi terhadap IPM, dan (3).Mengetahui pengaruh pengeluaran pemerintah pada sektor pendidikan, kesehatan dan infrastruktur terhadap IPM, baik secara langsung maupun melalui pertumbuhan ekonomi. Penelitian ini menggunakan sampel dua puluh provinsi yang dipilih dengan teknik simple random sampling yang kemudian dibagi kedalam dua kelompok, yaitu kelompok daerah dengan angka IPM tinggi dan kelompok daerah dengan angka IPM rendah. Metode yang digunakan dalam penelitian ini adalah analisis jalur. Sebagai pendukung, juga dilakukan uji beda rata-rata untuk mengetahui ada tidaknya perbedaan rata-rata secara statistik terhadap dua kelompok tersebut. Hasil estimasi menunjukkan bahwa terdapat perbedaan respon diantara dua kelompok daerah tersebut. Pada kelompok daerah dengan angka IPM tinggi, terlihat bahwa pengeluaran kesehatan dan infrastruktur mempunyai pengaruh positif dan signifikan terhadap IPM melalui pertumbuhan ekonomi, sedangkan pada kelompok daerah dengan angka IPM rendah terlihat bahwa hanya pengeluaran pendidikan yang mempunyai pengaruh positif dan signifikan terhadap angka IPM. Adapun pertumbuhan ekonomi, terlihat menunjukkan pengaruh yang positif dan signifikan terhadap IPM. Hal ini terjadi pada kedua kelompok daerah, baik kelompok daerah dengan IPM tinggi maupun IPM rendah.

scholarly journals THE EFFECT OF USING MNEMONIC METHOD ON TEACHING VOCABULARY MASTERY AT THE SEVENTH GRADE STUDENTS’ OF SMP NEGERI 22 BUTON TENGAH

2020 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Salfiani Salfiani ◽  
La Ode Nggawu ◽  
Sitti Agustina
Keyword(s):  
Experimental Design ◽  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Test Design ◽  
Seventh Grade ◽  
Paired Sample ◽  
Post Test ◽  
The Mean ◽  
Test Treatment

This research was conducted to find out whether there was a significant effect of the Mnemonic method in teaching vocabulary mastery at the Seventh-grade students’ of SMPN 22 Buton Tengah. The design of the research was a pre-experimental design ( one group pre-test post-test design). The population of this research was the seventh-grade (VII) of SMPN 22 Buton Tengah which consists of three classes, while the sample in this research was class VII3 that consisted of 25 students and used a simple random sampling technique. The instrument in this study was multiple choices, matching tests and public buildings, food, people around us to the topic. This study was conducted three sections namely pre-test, treatment, and post-test. The researcher used a paired sample T-test through SPSS 16.0 version to analyze the result of this research. The result showed that the mean score of students’ vocabulary mastery in the post-test was higher than students’ vocabulary in the pre-test ( 53.6 > 45.28 ). The hypothesis testing found that the value of sig ( 2 Tailed ) was 0.00 while the significant alpha value was 0.05. It can be concluded that the value of Sig ( 2 Tailed) was lower than the significance of α value (0.000< 0.05). in other words, (H1) was accepted. It showed that there was a significant effect of using the Mnemonic Method on teaching vocabulary mastery at the seventh-grade students of SMPN 22 Buton Tengah.

scholarly journals THE EFFECT OF SILENT WAY METHOD ON THE STUDENTS’ SPEAKING COMPETENCE AT THE TENTH GRADE OF SMAN 1 KONTUKOOWUNA

2020 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Wa Sani ◽  
Rohmana Rohmana ◽  
Muhammad Khusnun Muhsin
Keyword(s):  
Experimental Research ◽  
Random Sampling ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Test Design ◽  
Paired Sample ◽  
Oral Test ◽  
Tenth Grade ◽  
Post Test ◽  
The Mean

The objective of the study was to find out whether or not the silent way method can significantly affect students’ speaking competence. The design of this study was a pre-experimental research design (one group pre-test post-test design). The researcher applied a simple random sampling technique. The class 10 IPA1 was taken as the sample of the study with 18 students. The instrument of this study was an oral test in pre-test and post-test. This research was conducted through the following procedures: giving a pre-test, applying treatments and giving a post-test. The data were analyzed by using paired sample t-test. Through the SPSS16.0 version. The result showed that the mean score on students’ speaking competence in a pre-test was 32.22 and in the post-test was 49.44. Hypothesis testing found that the value of sig (2 tailed) was 0.00 while the significant alpha value was 0.0. It could be concluded that the value of sig (2 tailed) was lower than the significant alpha value was (0.00<0.05). Therefore, H1 was accepted and H0 was rejected. So, the use of the silent way method had a significant on the students’ speaking competence at the tenth grade of SMAN 1 Kontu kowuna.

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