Re: Regression, T Test

lara wrote:
Hey i'm really sorry if this is in the wrong place I had no clue
where to post it. I have an exam tomorrow on medical statistics and I
am so confused its not funny and was wondering if anyone could help
me with some basics.

I was wondering if anyone had time to explain when you would use the
following tests - T-test, correlation, regression, Chi-squared.

Also if anyone had time could they explain P values and
normal/standard distribution quickly as I have to be able tomorrow to
say what test you should use for certain types of data for example
what test would you use to compare different locations for equality
of age distribution, what test would u use to compare mean marks
between two areas and what test would be most appropiate for
comparing the locations for equality of sex distribution (choices -
correlation, regression, T-test and chi squared.) I'm sorry this is
so much but if anyone had time to help I would be in your debt
forever.

thanks lara xxx

Go to
http://bmj.bmjjournals.com/collections/statsbk/index.shtml
Start reading.
.

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