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10 Estimates in this publication relate to agricultural businesses within the scope of the survey (see paragraph 6), which operated in Australia at any time during the year ended 30 Jun 2012.
11 Estimates for the 2011-12 LaMPS are classified to the Australian Statistical Geography Standard, 2011 (cat. no. 1270.0.55.001) (ASGS) at the national and state/territory levels and by AAE regions.
12 The AAE regions are based on agroecological regions and have been aligned to Statistical Area 2 (SA2) boundaries from the ASGS to make output comparable with other ABS data. The main features summary page contains a map of the specific AAE regions used in this publication. Various thematic maps are also presented throughout this publication.
RELIABILITY OF DATA
13 The estimates in this publication are subject to sampling and non-sampling errors.
14 The estimates in this publication are based on information obtained from respondents to the LaMPS for the year ended 30 June 2012 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.
15 In this publication, 'sampling' variability of the estimates is measured by the relative standard error (RSE) which is obtained by expressing the RSE as a percentage of the estimates to which it refers.
16 Most published estimates have RSEs less than 5%. Where the RSE of an estimate included in this publication falls in the range of 10% to less than 25%, it has been annotated with the symbol '^' indicating that the estimate should be used with caution as it is subject to sampling variability too high for some purposes. Where the RSE of an estimate is 25% to 50%, it has been annotated with the symbol '*', indicating that the estimate should be used with caution as it is subject to sampling variability too high for most practical purposes. Where the RSE of an estimate exceeds 50%, it has been annotated with the symbol '**', indicating that the sampling variability causes the estimate to be considered too unreliable for general use. Separate indication of the RSEs of all estimates is available on request.
17 The following table contains estimates of RSEs for a selection of the statistics presented in this publication:
RELATIVE STANDARD ERRORS OF SELECTED ESTIMATES, by State and Territory - 2011-12
18 Errors other than those due to sampling may occur because of deficiencies in the list of units from which the sample was selected, non-response, and errors in reporting by providers. Inaccuracies of this kind are referred to as non-sampling error, which may occur in any collection, whether it be a census or a sample. 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.
19 A range of environmental and agricultural publications are produced by the ABS, including:
20 For more information please refer to the ABS web site <http://www.abs.gov.au>. The ABS also issues a daily Release Advice on the web site which details products to be released in the week ahead. All ABS publications are available free of charge from the ABS website.
ABS DATA AVAILABLE ON REQUEST
21 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.
22 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.
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