Hypotheses are educated guesses about possible relationships between at least two of the variables you plan to measure in your research. You will develop either a number of single hypotheses or a collection of related hypotheses from your literature review. Each hypothesis should arise from your critique of specific parts of your chosen literature.
The point of your subsequent research is then to test each hypothesis. The approach of hypothesis testing is usually the domain of quantitative or experimental research and an objective worldview.
As your research progresses you will be able to develop propositions based on your findings. Exploring unusual counter-intuitive propositions is usually the outcome of qualitative research from a subjective worldview.
The language of hypothesis testing is completely different from that of proposition development. You should be careful not to confuse them, as those differences in language reflect the opposing natures of objective and subjective worldviews. Many researchers believe it is extremely difficult, if not impossible, to bridge the gap between the two.