False, it is given that Sara spends $25 for all-day ticket in the amusement park. However, this is a shuck cost that she can not recover. Moreover, she has taken one ride so marginal analysis shows that all his $25 is not wasted. She has utilized some portion of their money so we can not say that she has wasted all his money.
The 0.01 percent of the deviation plus the 0.01 percent of the sales average is not enough to get to the $6,300 daily, which means that the factor of the increase sales is the advertising campaign.
