[sabj]

In my experience, those fields are often quite extraneous - not too relevant for interns, since many internships aren't really negotiable. This being said, the high end of your range is the low end of what I know internships pay on an hourly basis at top companies; $20/hour is certainly entirely reasonable. I think that given the likelihood this field will largely be disregarded anyway, you run little risk at putting in figures on the high end - if they are otherwise interested, they'll still talk to you, attributing your figures to your lack of knowledge about the local job market, etc.