<p>i had the same question. depends on the school. and if they have a school within a school. i know harvard and mit dont care what your major. If the School has like 4 schools(science, engineering, nursing, education) then the most popular school will be hardest to get into. </p>
<p>i dont think major will affect it greatly if at all</p>
<p>In general, major does not matter and being undecided is not a problem. Exceptions are things like what cb41 cited, when you have to apply to a specific School within a college (eg. Engineering, Architecture, etc.); being a woman interested in Engineering (with the credentials to back it up); and interest in a rare major (eg. Classics, again with the creds to support your interest).</p>
<p>So many students change their major while in college, they really don’t expect you to stay with what you’ve put on your application.</p>