I cannot emphasize enough how severely self-defeating this is. Given this response, men are likely to question their initial judgement of the woman's ability and professional worth. If the woman believes anyone could do it, perhaps anyone could. In speech, women often tack a verbal question mark to the end of a sentence, whether or not they are asking a question. It is a perfect tool that encourages conversation and input.
Questions create a natural flow of information between people.
Men are typically less skilled in this area, viewing a question useful only to obtain specific information. A man will often misunderstand the feminine style as a lack of knowledge or confidence and offer advice or instruction to a woman who has no need or desire for the misplaced generosity. Sometimes it helps to forewarn the man with whom you are speaking that you aren't asking for direction but simply talking through options. It conveys your thoughts solidly and removes the impression of self-doubt. Sometimes it's the details that give us the most problems.