18.    …. and to count the numbers and types of all the fish on those boats.

a)    What kind of design have they used?

b)    What could go wrong with the design that they have proposed?

CHAPTER EXERCISES

19.   Software licenses. The website www.gamefaqs.com asked, as their question of the day to which visitors to the site were invited to respond, “Do you ever read the end-user license agree- ments when installing software orgames?” Of the 98,574 respon- dents, 63.47% said they never read those agreements—a fact that software manufacturers might find important.

a)    What kind of sample was this?

b)    How much confidence would you place in using 63.47% as an estimate of the fraction of people who don’t read soft- ware licenses?