On top of the vegetables list are cucumber and lettuce, consisting of 96 percent water. Zucchini, radish and celery are comprised of 95 percent water. Ninety-four percent of tomato's weight is water, and green cabbage is 93 percent water.
I looked at the process sigma calculator (button in upper right below the search box) and they present a link to a forum post (http://www.isixsigma.com/forum/showmessage.asp?messageID=437) that gives information on calculating the sigma using a normsinv function.
Ninja Gaiden Sigma Plus is a port of Ninja Gaiden Sigma for the PlayStation Vita. Like Ninja Gaiden Black's Ninja Dog mode, Sigma Plus features an easier difficulty called Hero mode, making it more accessible to casual gamers.