Why Statistics?
Statistics is the field of science the deals with the collection, association,
and understanding of data. It is concerned with every aspect of this, which
includes the planning of data collection by the help of the designing of surveys
and experiments.
A statistician is the one who is particularly knowledgeable in the ways of
thinking that are necessary for the successful application of statistical
analysis. These people gain this kind of experience through working in any of a
large number of fields. A discipline called as mathematical statistics is also
there which is concerned with the theoretical basis of the subject.
Statistics is sometimes considered to be a mathematical science relating to the
collection, examination, explanation and presentation of data, while at other
times it is considered to be a branch of mathematics that is concerned with the
collection and interpretation of data. Owing to its pragmatic roots and its
focal point on applications, statistics is usually considered to be a individual
mathematical science rather than just a branch of mathematics.
Statisticians help to improve the quality of data through the design of
experiments and by survey sampling. This field also provides the tools that are
required for forecasting and prediction using data and statistical models. It is
applicable to a broad variety of academic disciplines, which includes social and
natural sciences, business and government. Statistical consultants are available
who provide help to companies and organizations without direct access to the
expertise that is relevant to the particular problems present.
The basic steps that are followed in a statistical experiment are:
1. Planning the research, this would include the finding of the number of
replicates of the study.
2. The designing of experiments using blocking in order to reduce the influence of confusing
variables, and following randomized assignment of treatments to subjects in
order to allow balanced estimates of treatment effects and the experimental
error
3. Performing the experiment following the proper experimental protocol and analyzing the
data again following the protocol.
4. The further examining of the data that is set in secondary analysis, in order to suggest
new hypotheses for future study.
5. Documentation and presenting the results of the study done.
To begin with, statistics includes various activities like gathering,
investigation, elucidation and arrangement of accessible data.
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