How long is the statistical sample valid?

The statistical sample is valid for a maximum of three years (including the year in which the sampling takes place) so long as it remains representative of the total population that it is applied to. Re-sampling is required when, for example:

  • your business operations have varied so significantly that an alteration in the composition of asset purchases could be expected
  • two businesses have merged, one of which was using the sampling rule and one of which was not
  • two businesses have merged, both using the sampling rule but having different percentages of revenue expenditure, or
  • there has been a demerger of a business.
    Last modified: 24 Feb 2012QC 17147