Stages for the beginning of a statistical investigation.

Stages for the beginning of a statistical investigation.

1. Planning.

   • planning objective
     • Fact or phenomenon that we are going to register numerically.
   • source of information
     • direct and indirect
   • purpose
     • It is the precise fixation of the concept of what you want to investigate.
   • the procedures
     • ¿how will we investigate?
   • the material
     • It is made up of all the supplies or documents necessary for the investigation.
   • cost and financing
     • the budget includes the calculation of the cost and its financing

2. Collection.

   • distribution of the collection material or instrument.
   • coverage
     • census
     • sampling
   • control of the number of collected forms
   • control over the quality of the information collected

3. Organization.

   • Review and correction of the information collected.
     • The whole result depends on this task.
   • Registration and coding
     • classify the primary material
   • information tabulation
     • preparation of tables, graphs and analysis
     • qualitative series and quantitative series.
   • Exploratory Data Analysis
     • intervals
   • frequency distributions
     • grouped frequencies
     • simple frequencies

4. Analysis.

   • Elaboration of distributions or frequency tables obtained
   • A summary is prepared, and various measures known as statistics or point estimators are applied
   • With the resulting figures, comparisons are made with other studies to reach better conclusions
   • Statistical analysis and evaluation of the results, as well as technical analysis and evaluation in accordance with the nature of the research.

5. Results presentation.

   • corresponds to the final phase of the investigation
     • Total result of the study
   • Description of the results in the form of tables or graphs
   • conclusions and recommendations
   • Appendix and overview tables

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