The ad bid data in Appendix A is in the Question $1$ worksheet of the Ad Bids workbook on

Blackboard and includes a set of representative bids for one search, sorted by their order of arrival.

If the ads are selected in the order they received, i$.$e$.,$ Ad # from smallest $(1)$ to highest $(30),$ which

ads would be selected? What is the profit?

Answer: Ads $15,$ and $19\%$ of $6,$ and the profit is $140\mathrm{.}24.$ I would try hard to come up with this

answer, but if you can$$t$,$ it$$s ok to continue with the rest of the assignment.

$2.$ Suppose that you instead choose ads based on the bid amount, from highest to lowest. Which ads

should you choose? What is your profit?

$3.$ Which bids should you choose to maximize profits? What is the profit?

$4.$ We have assumed that the typical screen is $1024$ wide by $768$ high. However, screen sizes have

increased over time $($thanks in part to Moore$$s Law$).$ If we now assume the typical screen is $1152$

wide by $864$ high, what bids should we choose now to maximize profits? What is the profit? Did you

need to re$-$sort the bids? Why or why not?

$5.$ Continuing to assume the screen size is now $1152$ x $864,$ another potential way to increase profits is

to shrink the border from $10$ pixels on each of the four sides of the ad to just $5$ pixels on each side.

Which bids should you choose to maximize profits? What is the profit? Did you need to re$-$sort the

bids? Why or why not?

Be sure and answer the extra questions at the end of questions $4$ and