1970 HUNGARIAN CENSUS OF POPULATION Information on the data collection and processing (1977)

CONTENTS

c/ Training 38 d/ Further preparatory works, supply with registration forms, propaganda 38 e/ The execution of the registration 39 f/ Local supervision , 40 g

/ Handing over of the census materials t 40 h/ Experiences obtained during the performing of the census 41 6. Sampling techniques applied in the census a/ The 25 per cent sample of the census district applied in the registration The size and the confidence intervals of the sample 43 The sampling method , 47 b/ The processing of the preliminary results by means of representative techniques The size of the sample (the number of the elements) 48 The unit of the sample survey 48 The sampling technique and its practical performance 48 The correction of the sample 49 The checking up of the population being temporarily present or absent as reflected by the sample 50 Confidence intervals of the sample data 51 The evaluation of the data originating from the sample survey of 1 per cent repre sentativy 51 c/ Testing for the accuracy of the census results 54 d

/ Surveys taken of the persons over 80 years after the census 56, 7. The preparation, programme and organization of the data processing a/ The findings of the preliminary results 57 b

/ The checking of the registration of persons having double residence 57 c/ The preparation of the data processing of the final data 59 d/ The organization of the processing 60 8. The electronic data processing of the census of 1970 a/ Brief characterization of the general organization and the main work-phases of the data processing 62 b

/ Recording of the data (punching, control of the punching and testing for completeness) 65 c/ The programming and performing of the automatic correction of errors in the practice The organizational structure of the correction of errors 65 Correction of the personal items 68 The checking of the completeness and the correction of the serial numbers 68 The mechanical correction of the "absurd" code-numbers 69 The family and household status; control and correction of their serial numbers 70 The control and correction of basis criteria 70 The final correction of the demographic criteria 71 The final correction of the occupational criteria 72 230