Statistical analysis

Phương pháp thống kê (statistics) đã được sử dụng từ lâu trong nhiều ngành kinh tế, y khoa, nông nghiệp, sinh học,môi trường … Các phương pháp thống kê toán học là : Thống kê mô tả (descriptive statistics) Thống kê suy diễn (Inferential statistics) Ước lượng và trắc nghiệm (Estimation and testing) Phân tích tương quan (hồi quy) (Regression analysis) Phân tích chuỗi thời gian (Time series analysis) 5 nhiệm vụ xử lý dữ liệu môi trường : 1). Phân tích dữ liệu điều tra các yếu tố môi trường (đất, nước, không khí …) phục vụ cho việc đánh...

109p bunag204 05-05-2013 205 35   Download

Các phương pháp thống kê toán học là : Thống kê mô tả (descriptive statistics); Thống kê suy diễn (Inferential statistics); Ước lượng và trắc nghiệm (Estimation and testing); Phân tích tương quan (hồi quy) (Regression analysis); Phân tích chuỗi thời gian (Time series analysis)

27p linhlan1903 04-11-2013 203 40   Download

Lectures "Applied statistics for business - Chapter 1: Data and statistics" provides students with the knowledge: Applications in business and economics, data, data sources, descriptive Statistics, statistical Inference, computer and statistical analysis, data mining, ethical guidelines for statistical practice. Invite you to refer to the disclosures.

30p doinhugiobay_13 26-01-2016 61 3   Download

Bài giảng Phân tích không gian I (Basic Spatial Analysis) - Bài 7: Phân tích hình mẫu không gian. Những nội dung chính được trình bày trong chương này gồm có: Hình mẫu không gian là gì? (what is spatial pattern?), tại sao cần phân tích hình mẫu không gian (why analyze spatial pattern?), chỉ số nhận diện hình mẫu không gian toàn cục (global statistics to identify spatial patterns), chỉ số nhận diện phân cụm cục bộ (local statistics to identify clusters).

31p zizaybay1107 19-07-2024 7 2   Download

The previous studies on technical efficiency (TE) of the soft drinks industry in Malaysia are still under consideration from other industries and existing studies discuss the industry in general. In fact, there is a previous study using industry-level data and does not consider the determinants of technical inefficiency determining the TE level. The purpose of this study is to identify the technical efficiency level and the technical inefficiency of the soft drinks manufacturing industry in Malaysia by 2015 using cross-section data of 118 firms obtained from the Department of Statistics (DOS).

9p longtimenosee09 08-04-2024 6 2   Download

The article discloses methodological approaches to quantifying the level of penetration of block chain technologies into the regional socioeconomic environment in comparison to the supply chain strategies. Based on the methods of mathematical and statistical analysis, it allows you to formalize and convert a large array of data of a qualitative order into a single scale for measuring the process under study - the level of demand in the regional socio-economic environment for block chain technology.

6p longtimenosee09 08-04-2024 1 1   Download

This aim of this study is to measure the technical efficiency score and identify the factors that affect the technical efficiency in plastic manufacturing firm in Malaysia for the year 2015 using the two stage Data Envelopment Analysis (DEA) method. The first stage involves calculating the efficiency score through the DEA using firm-level data, provided by the Department of Statistics, Malaysia. In the second stage, Tobit Regression Analysis was used to identify the significant factors affecting the efficiency of the plastic industry.

9p longtimenosee09 08-04-2024 9 1   Download

The general goal of the thesis is to use spatial statistical methods to analyze spatial correlations and spillover effects of human capital measurement factors on GRDP of provinces and cities in Vietnam.

23p kethamoi12 15-05-2021 11 2   Download

This research investigates the relationship between microeconomic, macroeconomic variables and number of cars sold in US. The main objective is to determine the factors that affecting the number of car sold in US. This research covers the time period from 1975 to 1990. The analysis methods that have been applied in this study include descriptive statistics, linear regression and correlation analysis.

36p daothikimlinh 25-02-2021 35 9   Download

This thesis applies the following research methods: Statistics, information collection and summarization; investigation of current situation by drawing and photographing, sociological investigation; professional method; analysis, synthesis, induction, comparison; forecast.

25p trinhthamhodang7 31-08-2020 35 3   Download

The objective of the thesis is to propose collaborative filtering recommender models that apply the proposed measures from the statistical implicative analysis method, tendency of variation in statistical implications, and association rules.

28p gaocaolon6 30-07-2020 32 3   Download

In addition to the economic development goals and viewpoints of Party and the State, the author used the following theories during his research: Theories related to the National Single Window which have been applied in development, formulation and operation of electronic payment; Theories related to duties, fees and charges; Theories related to electronic payment, electronic transactions; Theories related to statistics, linear regression and forecast analysis.

20p cothumenhmong6 17-07-2020 40 3   Download

This research study the problem of increasing traffic accidents and their consequences on peoples’ life and properties for the periods 1434 to1438 A.H – statistical analysis specially chi square have been used to study the factors affecting the number of accidents in Albaha city.

6p guineverehuynh 18-06-2020 37 4   Download

The present study covered at addressing socio demographic factors with employee attrition factors for employee. Data has been collected through a well structured questionnaire survey.

6p guineverehuynh 20-06-2020 14 3   Download

The present study makes an effort to find the long run equilibrium between Exchange Rate and Foreign Exchange Reserve. Fifteen years data of these variables has been extracted from the official website of Reserve Bank of India and has been analyzed by devising statistical software E – Views.

6p guineverehuynh 22-06-2020 30 0   Download

The present work is a retrospective study based on seizures of drugs made by the Niger courts and. Evaluation of the drug utilization by people according to the statistics of drug seizures from 2013 to 2016 of the Central Office for the Suppression of Illegal Traffic in Narcotics (OCRTIS).

11p christabelhuynh 04-06-2020 16 1   Download

Within the H2020 INSIDER project, the main objective of work package 3 (WP3) is to draft a sampling guide for initial nuclear site characterization in constraint environments, before decommissioning, based on a statistical approach.

7p christabelhuynh 29-05-2020 12 2   Download

In this paper, buckling behavior of aluminum cylindrical shell with rectangular cutout, subjected to axial pressure was studied by means of finite element simulations. The effects of geometric parameters (R, t, a, b and L) on the first buckling mode capacity of the shell were studied.

12p tohitohi 19-05-2020 11 1   Download

In this paper, a method for severity fault diagnosis of ball bearings is presented. The method is based on wavelet packet transform (WPT), statistical parameters, principal component analysis (PCA) and support vector machine (SVM). The key to bearing faults diagnosis is features extraction.

10p tohitohi 19-05-2020 23 1   Download

To assess the frequency allele and genotypic distribution of polymorphism rs165599 in catechol-O-methyltransferase in Kinh ethnic-patients with schizophrenia. Subjects and methods: A case-control study consisted of 227 schizophrenic patients and 92 healthy controls in the Kinh ethnic. The rs165599 was genotyped by PCR-RFLP and statistical analysis was performed by Chi-Square test. Results: The frequency of allele A and G in schizophrenic patients were 72.36% and 69.94%, respectively. The frequency of allele A and G in healthy controls were 27.64% and 30.06%, respectively (p > 0.05).

6p chauchaungayxua1 02-12-2019 28 3   Download