Remember 800 because that’s your big number / most important.
So they’re open from 8am - 10pm. They’re open for 14 hours a day and they sell 16 rolls per hour. If one hour is 16 rolls sold , then what is 14? 16 x 14 hours (16 x 14 = 224) In a whole day they sell 224 rolls. Monday: 800 rolls - 224 rolls = 576 rolls Tuesday: 576 rolls - 224 rolls = 352 rolls Wednesday: 352 rolls - 224 rolls = 128 By Thursday they won’t be able to sell more than 224 because there is only 128 rolls left that will be sold out in 8 hours on that day. So they will be sold out completely by THURSDAY. The best time to go to the store is most likely on a Tuesday around 12-1pm
A matched subject design makes use of different sets of experimental groups for a treatment. then, each test subject in one group is matched with another equivalent subject in another group.
the advantage of this is that it reduces the error of variance
