Admin What is mean by statistical investigation?
Statistical investigation is part of an information gathering and learning process which is undertaken to seek meaning from and to learn more about observed phenomena as well as to inform decisions and actions. A scientific method is used for a statistical investigation since it is concerned with empirical data.
What are the types of statistical investigation?
We discuss two types of statistical investigations: the observational study and the experiment. Each type of investigation involves a different approach to collecting data.
What is statistical investigation and its stages?
Answer: The stages of a statistical inquiry are: Collection of data. Organization and Presentation of the numerical data. Analysis of the numerical data. Interpretation of the numerical data.
How are statistical investigations conducted?
A statistical investigation involves: choosing a context, and then the specific aspects that interest each group. identifying the variables and the subjects of the investigation. planning and carrying out the procedures for data collection to obtain random, fair and representative data.
What is statistics the study of?
Statistics is the science and, arguably, also the art of learning from data. As a discipline it is concerned with the collection, analysis, and interpretation of data, as well as the effective communication and presentation of results relying on data.
What are the five stages in statistical investigation?
A cycle that is used to carry out a statistical investigation. The cycle consists of five stages: Problem, Plan, Data, Analysis, Conclusion.
What is the important step of statistical investigation?
The main steps utilized in a statistical investigation include four components: clarifying the problem and formulating questions or hypotheses that can be answered with the data, designing or creating an appropriate experiment that can collect the data required, finding and using the appropriate techniques needed to …
What are the tools of statistics?
The most well known Statistical tools are the mean, the arithmetical average of numbers, median and mode, Range, dispersion , standard deviation, inter quartile range, coefficient of variation, etc. There are also software packages like SAS and SPSS which are useful in interpreting the results for large sample size.