Let's say you're the marketing guru for a national chain of fast-food joints that aren't particularly known for doing breakfast. In fact, you're better known for your late night hours.
In an effort to expand your market share, you decide to introduce some tasty sounding breakfast items. Good. Send out coupons. Good.
Now let's say you forget to notify your regional stores that for most people breakfast means sometime between 5:30 and 8 AM, and your stores maintain their normal opening hours of 9 AM when most everyone has had breakfast and is busily at work.
A statistical analysis would probably tell you that your offerings were not well received and were selling poorly. You'd be smart to drop them.