Individual problem 14-2: You run a chain of movie theaters, so you commission a marketing study that categorizes your potential customers into 10 equal-sized groups according to what they're willing to pay for a movie ($10, $9, $8, $7, $6, $5, $4, $3, $2, $1). It turns out that the low-value customer groups, those with values ($5, $4, $3, $2, $1), are all over 65 years old. All the costs of exhibiting movies are fixed except for the $3.50 royalty payment you must make to the film distributor for each ticket sold. What price should you charge for the movie tickets? Should you offer senior citizen discount? If so, how much?