In a recent Super Bowl, a Nielsen report found that 45% of the 9,000 surveyed U.S. households had TV sets tuned to the game. The margin of error is 1 percentage point.

a. Based on the given information, state what you think was the goal of the study. Identify a possible population and the population parameter of interest.

b. Briefly describe the sample, raw data, and sample statistic for the study.

c. Based on the sample statistic and the margin of error, identify the range of values (confidence interval) likely to contain the population parameter of interest.