Australian Bureau of Statistics
4627.0 - Land Management and Farming in Australia, 2012-13 Quality Declaration
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 27/06/2014
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8 While the ABSBR does not include all agricultural businesses in Australia, it provides improved coverage from the former ABS maintained Agricultural Survey frame as most businesses and organisations in Australia need to obtain an Australian Business Number (ABN) from the ATO for their business operations. The ABR based register is also more up-to-date as it excludes agricultural businesses with cancelled ABNs and incorporates regularly updated information on agricultural businesses from the ABR and ATO.
9 For the 2012-13 REACS, a response rate of 83% was achieved from a sample of approximately 33,700 agricultural businesses. This sample was selected from an in-scope population of approximately 153,700 agricultural businesses.
RELIABILITY OF DATA
10 The estimates in this publication are subject to sampling and non-sampling errors.
11 The estimates in this publication are based on information obtained from respondents to the REACS for the year ended 30 June 2013 and are subject to sampling variability. That is, estimates may differ from figures that would be produced if all agricultural businesses had been included in the survey. One measure of the likely difference is given by the standard error (SE), which indicates the extent to which an estimate might vary by chance when not all units have responded, i.e. when a 'sample' of responses only is obtained. There are about two chances in three that a 'sample' estimate will differ by less than one SE from the figure that would have been obtained if all units had responded, and about nineteen chances in twenty that the difference will be less than two SEs.
12 In this publication, 'sampling' variability of the estimates is measured by the relative standard error (RSE) which is obtained by expressing the SE as a percentage of the estimate to which it refers.
13 Most published national estimates have RSEs less than 5%. For some states where certain farm management practices are less prevalent, RSEs can be greater than 10%. Estimates that have an estimated RSE between 10% and 25% have the RSE range annotated. These estimates should be used with caution as they are subject to sampling variability too high for some purposes. Estimates with an RSE between 25% and 50% have the RSE range annotated. These estimates should be used with caution as they are subject to sampling variability too high for most practical purposes. Estimates with an RSE greater than 50% have that RSE range annotated. This level of sampling variability causes the estimates to be considered too unreliable for general use. Separate indication of the RSEs of all estimates is available on request.
14 The following table contains estimates of RSEs for a selection of the statistics presented in this publication:
15 Errors other than those due to sampling may occur at any stage of a survey or census and are not easily identified or quantified. Non-sampling error can include coverage error, non-response, errors in reporting by providers, and processing error. Every effort has been made to reduce non-sampling error to a minimum by careful design and testing of questionnaires, operating procedures and systems used to compile the statistics.
ABS DATA AVAILABLE ON REQUEST
16 As well as the statistics included in this and related publications, the ABS may have other relevant data available on request. Inquiries should be made to the National Information and Referral Service on 1300 135 070.
17 ABS publications draw extensively on information provided freely by individuals, businesses, governments and other organisations. Their continued cooperation is very much appreciated. Without it, the wide range of statistics published by the ABS would not be available. Information received by the ABS is treated in strict confidence, as required by the Census and Statistics Act 1905.
18 Current publications and other products released by the ABS are listed under the Statistics and Topics @ a Glance pages on the ABS website http://www.abs.gov.au. The ABS also issues a daily Release Advice on the website which details products to be released in the week ahead.
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This page last updated 21 August 2014