Re: Sample vs Population Question


t.mccreight@xxxxxxxxxxxxx wrote:
> I used age as the common variable because all respondents supplied
> that. Mean age for those not providing salary was 48.6;for those
> providing salary it was 41.1.
>
> SPSS gave me those 3 lovely zeros after the decimal point in the
> significance column.

Well, with a sample size of about 2000 you have a lot of power. Is
there any strong reason to think that a mean age difference of 7.5
years is likely to be of substantive significance given the age
distribution of the entire sample?
John Kane, Kingston ON Canada

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