Betekenis van:
stratified sample

stratified sample
Zelfstandig naamwoord
    • the population is divided into strata and a random sample is taken from each stratum

    Synoniemen

    Hyperoniemen


    Voorbeeldzinnen

    1. Harmonised stratified sample size
    2. Harmonized stratified sample size
    3. A nationally representative stratified probability sample of enterprises shall be taken from this frame.
    4. The sample shall be stratified by NACE and size category according to the following minimum specification:
    5. The sample shall be stratified by NACE Rev.2 and size category according to the following minimum specification:
    6. ‘sample surveys’ means statistical surveys based on stratified random sampling which are designed to provide representative statistics concerning agricultural holdings at regional and national levels.
    7. A sample size shall be calculated to assure a maximum half-length of the 95 % confidence interval of 0,2 for the estimated parameters, which are a proportion of “training enterprises” (after allowance for the non-response rate in the sample) for each of the 60 stratified elements identified above (120 stratified elements for Member States with 50 million inhabitants and more).
    8. For an HICP that is a strict annual weights index, estimations may also be performed at a more detailed level than the subdivision of COICOP/HICP, such as for strata if a stratified sample is being used.
    9. A sample size shall be calculated to assure a maximum half length of the 95 % confidence interval of 0,2 for the estimated parameters, which are a proportion of ‘training enterprises’ (after allowance for the non-response rate in the sample) for each of the 60 stratified elements identified above.
    10. ‘sample surveys’ means statistical surveys based on stratified random sampling which are designed to provide representative statistics concerning agricultural holdings at regional and national levels. The stratification shall include the size and type of the agricultural holding to ensure that agricultural holdings of different sizes and types are adequately represented;
    11. The Statistical Business Register (SBR) referred to in Council Regulation (EEC) No 2186/93 [1] shall normally be taken as the main source of the sampling frame. A nationally representative stratified probability sample of enterprises shall be taken from this frame.