Some interesting statistics problems that could be researched on the web:

Do firearms laws prevent violence? Maybe not!

http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5214a2.htm

Some scientists assert that the average temperature of the planet has increased 1 degree in the last century.

Others maintain there is no evidence of "global warming" or that increased carbon dioxide in the atmosphere is materially "man-made" or that it is necessarily bad.
http://www.oism.org/pproject/s33p36.htm

http://www.co2science.org/carbon/2002/v5n4com.htm

Is global warming real (statistically significant)? If so:
is it due to greenhouse gases?
Is human activity a significant contributor?
Is it a good thing or a bad thing?
 

Is there an increasing problem with "holes in the ozone layer"?

"On average Americans read less (fewer?) than one book a year"

Is this assertion supportable by evidence?
 

"It costs more for legal procedures over condemned prisoners than it would cost for life imprisonment instead."

"One in six Americans are victims of sexual abuse."

Cigarette smoking is less prevalent among Americans with college degrees-- CDC report

Tools:

Metasearch Engines