Re: Location and dispersion

On 1 Oct 2005 14:28:55 -0700, joe.noir@xxxxxxxxxxxxxx wrote:

> I am working my way through a distance learning module on Business
> Statistics.
>
> The college thoughtfully has not considered the need for any training
> or manuals on Minitab (v 12). So I have been relying on the, greatly
> appreciated, help on this group.
>
> Part of my current assessment involves a 20% sample of expenditure from
> male and female groups.
>
> However, the assessment asks the following:
>
> Input your data into the statistical programme Minitab and hence
> calculate the appropriate measures of location and dispersion. Produce
> a printout of both your data and calculations.
>
> The terms "location" and "dispersion" do not appear in the course
> material, and coupled with the lack of Minitab training, I am 'dead in
> the water'


Location is most often 'mean' (could be median).

Dispersion is most often 'variance' or standard deviation
(could be range or interquartile range, etc.).

These terms are commonplace, to describe and
discuss distributions. Location, spread, then "shape."

These might correspond to the first three central moments,
in which case the third one might be "skewness."

[snip, rest]

--
Rich Ulrich, wpilib@xxxxxxxx
http://www.pitt.edu/~wpilib/index.html
.

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