If you already have enough points for CSQ (minimum of 55 for single, 63 for married), there is a possibility of an interview waiver. Such is upon the discretion of the Immigration Officer. Usually they ask for an interview if they want to verify the originality of some documents, they want to assess your language level personally, or they have some information about you that they want to clarify.
Try to look at the guidelines they use, under
4.3.1.2 Selection of folder. Here's the link: http://translate.google.com/translate?sl=fr&tl=en&js=n&prev=_t&hl=hu&ie=UTF-8&u=http%3A%2F%2Fwww2.publicationsduquebec.gouv.qc.ca%2FdynamicSearch%2Ftelecharge.php%3Ftype%3D7%26file%3DGPI-3-1.pdf&act=url
Good Luck!