Question 7.168

42. Facebook Accounts. In 2014, the Harvard University Institute of Politics surveyed 3058 people 18 to 29 years old and found 2569 who had a Facebook account.7 Suppose we take samples of 256 18- to 29-year-olds.

  1. Find and for the sample proportion of 18- to 29-year-olds with Facebook accounts.
  2. Calculate .
  3. Compute .