UMASS是要寄送财产证明吗？

RT，
在他们家研究生网站上看到如下：

International Student Financial Statement (Sponsor Statement): Every international applicant must complete this form and submit it along with the application. The information contained in this statement will be used to determine if the University will be able to provide you with a visa sponsorship if you are eventually offered admission.

请问这是要寄送财产证明吗？
umass.edu 这个就是传说中的财产证明吗？