For Exercises 6.23 to 6.25, see page 304; for 6.26 and 6.27, see pages 305–306; for 6.28 to 6.30, see page 309; for 6.31 and 6.32, see page 311; and for 6.33, see page 313.
6.32 Changes in sample size.
Suppose that, in the setting of the previous exercise, you have the resources to contact 500 recent graduates. If all respond, will your margin of error be larger or smaller than $1000? What if only 50% respond? Verify your answers by performing the calculations.