For Exercises 8.49 to 8.51, see page 437; for 8.52 and 8.53, see pages 439–440; for 8.54 to 8.56, see page 440; for 8.57 to 8.58, see page 444; for 8.59, see page 445; and for 8.60, see page 447.

Question 8.59

8.59 What would the margin of error be?

Consider the setting in Example 8.10.

  1. Compute the margins of error for and for each of the following scenarios: , ; , ; and , .
  2. If you think that any of these scenarios is likely to fit your study, should you reconsider your choice of and ? Explain your answer.

8.59

(a) 0.28. 0.27. 0.26. (b) Yes, under all three conditions, the margin of error is much larger than the desired 0.1 as given in Example 8.10.