Calculate or look upthe cost of capital for the firm AT&T. Ideally you calculate this using the various inputs, but a good source of this information can be found at

http://pages.stern.nyu.edu/~adamodar/

Look under the data. You can use industry average data in combination with the files titled "cost of capital by industry sector" under the discount rate section. Make sure to show your calculations and sources.

I am looking for the breakdown of the capital cost for AT&T.