17- 20: In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 53% said that they were dissatisfied with the quality of education students receive in kindergarten through grade 12. They also report that the "margin of sampling error is plus or minus 4%."

17. What is the population of interest?_____________________________________________

18. What is the sample being used?_____________________________________________

19. What is the population parameter of interest, and what is the correct notation for this parameter? What is the relevant statistic?__________________________________________________________________________________________

20. Find an interval estimate for the parameter of interest. Interpret it in terms of dissatisfaction in the quality of education students receive. Use two decimal places in your answer.__________________________________________________________________________________________