Contact your instructor, and let them know that you are
having problems with an assignment. Most instructors have
office hours, where you can discuss problems like this.
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spector at stat.berkeley.edu
On Fri, 5 Mar 2010, SquareAce wrote:
>
> Can someone get me going in the right direction with this test question? We
> have went as far as t.test in our class, but not to power or anova yet. I
> have pasted the question and a summary of the dataset "gpa".
>
> 5. Given that all the GPA data in this dataset is comprised of means, would
> you expect the underlying dataset of students? individual GPA to be more
> variable or less variable than this dataset as measured by the variance?
> Explain. (5 points)
>
> here is the summary of gpa:
>> summary(gpa)
> school GPA gender classification semester
> Business :32 Min. :2.200 f:80 fresh :40 fa04:40
> Education:32 1st Qu.:2.590 m:80 junior:40 fa05:40
> Liberal :32 Median :2.790 senior:40 sp05:40
> Nursing :32 Mean :2.775 soph :40 su05:40
> Sciences :32 3rd Qu.:2.922
> Max. :3.640
> --
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