Suppose that we want to estimate what proportions of all drivers exceed the legal speed limit on a certain stretch of road between Los Angeles and Bakersfield. Use the formula of Exercise 12 to determine how large a sample we will need to be at least 99% confident that the resulting estimate, the sample proportion, is off by less than 0.04
Exercise 12
Use the formula of Theorem 7 to demonstrate that we can be at least (1 - α)100% confident that the error we make is less than e when we use a sample proportion
