What is a key difference between six sigma and other quality initiatives? Group of answer choices One of the key differences about six sigma compared to other quality initiatives is the cultural shift with six sigma from the way things have been done in the past One of the key differences about six sigma compared to other quality initiatives is the potential lack of management support present with other quality initiatives One of the key differences about six sigma compared to other quality initiatives is the use of statistics One of the key differences about six sigma compared to other quality initiatives is the Greek letter in the name