An Introduction to statistic using Excel
To illustrate the statistical functions and techniques within Excel we have
used examples drawn for the world of research. We chose to do this because
we believe this will clearly demonstrate some of the facilities within
this spreadsheet. However, the statistical power of Excel will allow readers
to use this software in a variety of ways, far beyond that of research.
Statistics is both a science and an art. It is a science in that it is a body of
knowledge which is built on a series of well established rules of applied
mathematics. Rigorous statistical analysis is required for quantitative research.
There is no argument about how statistical calculations or techniques
are to be performed and if the rules are not followed then incorrect
answers will most probably be produced. However statistics is also
an art that requires a considerable amount of judgement on the part of a
practitioner. Judgements and decisions have to be made that relate to
deciding how a research question should be designed and the role of
data and statistics in answering it. There are issues relating to which statistical
technique to use, what level of significance to work at, and how
the results can be interpreted.