jamesmartinn
New Member
Canada
2 Posts 
Posted  09/25/2007 : 22:11:04

Hello all,
I'm having a bit of trouble with one of the questions assigned for homework. The question reads:
The following stemleaf display show individual grades separately for males and females. From these results, what would you conclude about any differences between males and females?"
I've scanned a picture of the stemleaf plot: http://img.photobucket.com/albums/v646/supa69/stemleaf.jpg
My take at things: Firstly, this is purely descriptive analysis. No inferential procedures(i.e., ttest for independent samples) have been conducted, so we can't say the groups differsignificantly. However, by visual inspection, the distribution of female scores tends to be a bit negative. This means that a lot of females score high and may seem to find the course/test/exam/whatever easier, relative to the boys. I think my teacher wanted a more qualitative answer by just looking at the graph. I don't know what else to report? I'm pretty sure sample size has a role here and I know the boy's distribution is bimodal.
Please, any help is appreciated.


