Not at all, and many scholars agree with me. The attention to detail in regards to ettiquette and custom in high society, as well as the understanding of different cultures that is displayed in the works was way beyond the scope of someone of shakespeare's place in society. He couldn't just google this stuff either, it would have to come from personal experience.
Also, many of the works were heavily satirical, and risque in their criticism of the aristocracy. Again, we are used to being able to say what we want, but in those times, such criticism could be heavily punished.
It is more likely that the works were written by a high courtier, or lower member of the aristocracy, who patronised Shakespeare and allowed him to take the credit, and more importantly, the risks associated with the works, whilst he himself had the satisfaction of seeing his work reach an audience.
check around on the web, there is one Noble who is a 'hot favourite' candidate for this theory, I cant remember his name, but his family crest is a man shaking a spear.
Its nowhere near as
as you might think.