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.
6.29 Changing the sample size.
In the setting of the previous exercise, would the margin of error for 95% confidence be roughly doubled or halved if the sample size were raised to ? Verify your answer by performing the calculations.
6.29
Halved; the margin of error is 183.75.