en-1718790709-Statistical Methods Standards and Guidelines 2nd Edition 2017.pdf

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6.6
COUNTRYSTAT CountrySTAT is a statistical framework and applied information system designed for analysis, organize, integrate and disseminate statistical data and metadata primarily on food security, nutrition and agriculture to ensure harmonization of national data and metadata.

6.6.1 Objectives of Country-Stat

The objectives of Country-STAT database are; (i) To provide easy access to quality statistics on food and agriculture at sub-national, national and regional levels, (ii) To support data analysis and evidence-based decision making, (iii) To facilitate informed policy making and monitoring with the goal of eradicating extreme poverty and hunger.

6.6.2 Methodology of Data Production Country-STAT indicators are obtained from agricultural censuses (crops, livestock and area harvested), Trade (import and export of crops and livestock), routine data from Ministry of Agriculture Livestock and Fisheries, Tanzania Revenue Authority (TRA), Ministry of Industry and Ministry of Natural Resources and Tourism.

Accessing Country-STAT; Is a web-based database, accessed through the address www.countrystat.org/TZA

6.7
ENHANCED GENERAL DATA DISSEMINATION SYSTEM (E-GDDS) e-GDDS is the Enhanced General Data Dissemination System tool which enhances the availability of timely and comprehensive statistics and contributes to sound macroeconomic policies and the efficient functioning of financial markets.

It focuses to 15 data categories aligned to the IMF Article IV’s Table of Common Indicators Required for Surveillance (TCIRS).

Enhanced General Data Dissemination System will be implemented through Open Data Platform (ODP) and the National Summary Data Page (NSDP).

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The Enhanced General Data Dissemination System enables Tanzania to improve data dissemination practice, enhance transparency, timeliness and facilitate evidence based policy decisions. In addition, implementation of the e-GDDS will provide opportunity for Tanzania to advance to the Special Data Dissemination Standard (SDDS). Dissemination of macroeconomic and socio-economic data through the NSDP will provide easy access to information and act as one stop Centre for national and international data users.

The Ministry of Finance and Planning, Bank of Tanzania and National Bureau of Statistics made the NSDP public in November, 2016 through the National Bureau of Statistics website (www.nbs.go.tz)

6.8
NBS WEBSITE This is the main dissemination tool at NBS. It is used to inform the Public (Government, MDAs, Researchers, Media, Private Sectors, etc.) about what is happening at NBS including statistical Publications, Releases, Events, advertisements and other services.

The development of the NBS website has made it possible for staff and stakeholders to benefit from the shared global information resources and knowledge. The availability of NBS Website (www.nbs.go.tz) has also increased the opportunity to collaborate and share information with other countries and development partners.

6.8.1 Objectives of the NBS Website The main objective of the NBS website is to inform the Public on all existing statistical products and services and the ongoing activities at NBS. These include but not limited to the release of; (i) Periodical Publications on the Population and Housing Census Reports, Agriculture Sample Census Survey, Households Budget Surveys, Demographic and Health Surveys, HIV and malaria Surveys, Economic Statistics, the National Accounts Statistics, Panel Survey, Labor Statistics Survey, Industrial Statists Survey, etc; (ii) Statistical Releases including the Quarterly release of the Gross Domestic Product (GDP), Monthly releases of the Consumer Price Index (CPI), Product Price Index (PPI), Trade Price Indices (TPI) and the Hotel Statistics; (iii) GIS shape files; and (iv) Journals including the TSMP bulletin and the NBS monthly Newsletter.

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The focused target groups are; - The Government of Tanzania officials mostly the; Planners, Policy Makers; Analysts, members of the Parliament, Researchers, NGOs, Media and the Public at large.

6.8.2 Methodology The document format used to display and deliver different types of documents on a website is PDF. The end use needs to have Acrobat Reader for PDF to open the document and the internet connection would be necessary for downloading.

6.9
SAMPLING Sampling refers to selecting a subset of elements from a population or a full set of element. The usual goal in sampling is to produce a representative sample. A sample is similar to the population on all characteristics, except that it includes fewer elements because it is a sample rather than the complete population. A perfect representative sample would be a “mirror image” of the population from which it was selected, except it would include fewer elements. The selection of a sample can either be through probability or non – probability mechanism.

6.9.1 Objectives of Sampling To design a representative sample that is cost-effective within the agreed timeframe.

6.9.2 Methodology NBS maintains two types of frames, the Population and Housing Census Frame is used to design households based surveys while the Statistical Business Register (SBR) is used for designing establishment based surveys. Normally, household based surveys design use multi-stage cluster sampling and elements are selected systematically or a complete coverage is done within the selected cluster. In establishments survey, establishments are stratified on the basis of the desired details of the published output by region, ISIC activity and employment size, and establishments may be selected using probability proportional to size sampling or systematic sampling.

Before enumeration updating of selected clusters is done to reflect the current situation.

6.9.3 Reference to applicable standards
All sampling procedures and methods follow international standards using L. Kish (1966) and W. Cochran.

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6.10 ENVIRONMENT STATISTICS Environment statistics cut across several disciplines and draw data from a wide range of sources. Apart from the National Bureau of Statistics, Ministries, Departments and Agencies, several other institutions are key players in producing data used in environment statistics. Environment statistics provide information about the state and changes of environmental conditions, the quality and availability of environmental resources, the impact of human activities and natural events on the environment and the impact of changing environmental conditions. They also provide information about the social actions and economic measures that societies take to avoid or mitigate these impacts and to restore and maintain the capacity of the environment to provide the services that are essential for life and human well-being

6.10.1 Objectives of Environment Statistics

The objectives of environment statistics is to provide information about the environment, its most important changes over time and across locations and the main factors that influence them. Environment statistics seek to provide high quality statistical information to improve knowledge of the environment, support evidence-based policy and decision-making and provide information for the general public and specific user groups.

6.10.2 Methodology of data production

Environment Statistics are compiled and disseminated basing on the International recommended Framework for Development of Environment Statistics (FDES 2013) after every two years. FDES is a flexible, multi-purpose conceptual and statistical framework that is comprehensive and integrative in nature. It marks out the scope of environment statistics and provides an organizing structure to guide their collection and compilation and to synthesize data from various subject areas and sources, covering the issues and aspects of the environment that are relevant for analysis, policy and decision making.

The FDES 2013 organizes environment statistics into six components and each of them is broken down into sub-components and statistical topics. The six components include: environmental conditions and quality; the availability and use of environmental resources and related human activities; the use of the environment as a sink for residuals and related human activities; extreme events and disasters; human settlements and environmental health; and social and economic measures to protect and manage the environment. The statistical topics represent the quantifiable

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aspects of the components and are grouped into sub-components, taking into account the types and sources of the statistics needed to describe them.

6.11 TAX STATISTICS Tax Statistics include all major tax revenue statistics collected by the government. It also includes non-tax revenues collected by Local Government Authorities (LGAs) as part of their own sources. The government has categorized all revenues to be collected by LGA’s. Taxes are broadly categorized as Direct and Indirect taxes.

Direct taxes
These are taxes levied directly on people’s income from employment, business, ownership of property or investment. They include income tax, corporate tax, property tax, Pay as You Earn (PAYE), skills and development levy, individual tax, withholding tax, rental and gaming tax.

Indirect Taxes
These are taxes based on consumption. Categorically, they are divided into consumption taxes, other domestic taxes and international trade taxes. Examples of such taxes are Import Duty, Excise Duty and Value Added Tax (VAT). By definition, the legal incidence of the tax falls on the trader who act as a collecting agent of the Government while the effective incidence falls on the final consumer of goods or service who eventually pays the tax.

6.11.1 Objectives and uses of Tax Statistics:

Tax and other aligned statistics are disseminated to researchers, the business community and other interested users are mainly for the following purposes: (i) To provide information to the stakeholders and interested readers to be aware of their government’s tax and non-tax revenue collection; (ii) To illustrate the Government’s economic performance in terms of tax collections from various sources in the economy; and (iii) To improve and stimulate voluntary compliance of tax payers.

Uses of tax statistics (i) To monitor the economy, especially in formulating tax related policies; (ii) Inform the general public on the importance of tax compliance; and

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(iii) Used by researchers and scholars for research purposes.

6.11.2 Methodology of data production The collection of Tax statistics depends on secondary data from Tanzania Revenue Authority (TRA). The obtained secondary data are being analyzed and come up with the report on Tax and Government Finance Statistics.

6.11.3 Reference to applicable Standards and Classifications

Tax statistics use the Government Finance Statistics (GFS) classification.

6.12 NBS LIBRARY Is a room in which hard copy and soft copy materials special for dissemination and retrieval of information are kept. These materials include but not limited to; books, journals, periodicals, newspapers, CDs/DVDs for studying, reference and reading.

NBS Library also stores statistical information from other African Countries, Asia, China (Republic) India, Indonesia, and Korea (Republic) Mongolia, Bangladesh, Norway, Latin America, Mexico, United Nations and Others.

6.12.1 Library Objectives are: i. To provide Statistical information to various users, e.g.; Researchers, Academicians, Universities, Government institutions, NGOs, and other stakeholders. ii. To support research activities, conducted by different stakeholders.

Classification of NBS library materials Classification of NBS Library materials is Subject to International classifications by Dewel Decimal Classification (DDC) document. According to DCC library materials are categorized into 10 groups as follows:- 0:
General – Represents the first class as far as Library Classification is concerned, these are Publications which contain all statistical information; 1:
Population, Labour and Housing; 2:
Agriculture, Forest and Fisheries;

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3:
Mining, Manufacturing, Electricity, Gas, Water supply and Construction; 4:
Transport, Communications, Commerce and Expenditure; 5:
External trade; 6:
Wage, Price, Family Income and Expenditure; 7:
Enterprise and Establishments; 8:
Banking, public Finance and National Accounts; 9:
Education, Health and Social Statistics; X:
Others; XX: Thesis.

Description of Statistical Materials Entries on statistical materials include the following information in the following order:
i Organization published the report or publication; ii Title of the publication; iii Volume or serial number of the publication and Code number. Code numbers are used to reveal duration of publication issued (A – annually, I – irregular, M – monthly, Q – quarterly, S - semiannual).

6.13 FINANCE 6.13.1 Financial Resources

Financial resources are one of the key elements for successful implementation of any institutional goal. In this respect, the NBS strives for availability of adequate financial resources from the government and other sources including commissioned work, loans, and grants from development partners. Government subvention is mainly for paying staff salaries, production of core statistics and other administrative costs.

Budget process The NBS’s Budgets are prepared in accordance with Medium Term Expenditure Framework (MTEF) and budget guidelines as issued by the Treasury. The Heads of Departments have overall responsibilities for ensuring that departmental budgets are produced and submitted to the Financial Manager in accordance with agreed timeframe.