Does A New Installation Contain Personal Information? I am going to sell my MacBook Air when the new MacBook comes out and so I want to make sure there is no personal Information available to the next user.

I am going to wipe my SSD and reinstall the OS however since I have to download the installer from the App Store will information like my Apple ID be copied onto the computer during the installation?
No, no personal information is stored unless you enter any. If you're performing a clean installation of OS X then simply set it up with a temporary administrator account, no need to sign into iCloud or register etc.