A thesis should be clear and backed by evidence, but it does not necessarily have to be controversial in order to be effective. It is more important that the thesis is persuasive and well-supported, rather than aiming to intentionally anger the reader.
You should generally never change your thesis, as this would promote confusion with the reader.
The thesis is your main topic. It tells the reader what you will be writing about. Without a thesis the reader wouldn't know what your point was.
thesis
In academic writing, the thesis should typically be the last sentence of the introduction, setting the tone and purpose of the paper for the reader.
A thesis statement is a statement that can be clearly stated at the beginning of an essay to tell the reader the point you are going to argue. A thesis has to be arguable and provable, hence using "arguments". It should be clearly stated to the reader so that they know what point you are trying to make and can understand your arguments.
Yes. Your thesis can definitely present a controversial topic with all the aspect leading to its sensitivity. I suggest you take a look into a few thesis topic examples to help you understand what kind of controversial topics you can opt for. http://goo.gl/zR5vzD
You can, it might make the reader question themselves.
The actual analysis and breakdown should be put in the appendix, but your findings should be in the main part of your thesis (linking the reader to the appendix should they require more information)
A thesis statement should clearly outline the main point or argument of a paper, providing direction and focus for the reader. It should be specific and concise, presenting the main idea that will be supported and developed throughout the essay.
A thesis statement tells the reader what the paper and/or research is about and why it was done. It should not have opinion but tell what the expected outcome will be. In the final summary you will restate the thesis and tell if you proved your thesis in your paper.
The concluding paragraph of an essay should typically restate the thesis statement to remind the reader of the main argument and offer a final thought or reflection that leaves the reader thinking. This section should summarize the main points discussed in the essay and make a final compelling statement to leave a lasting impression on the reader.
A thesis statement should be clear and specific, but not necessarily obvious. It should clearly communicate the main idea or argument of the paper to the reader. It can be straightforward, but it doesn't have to be overly simplistic or predictable.