Discuss the below:
Q: On January 7, 2000, the Gallup Organization released the results of a poll comparing the lifestyles of today with previous times. The survey results were based on telephone interviews with a randomly selected national sample of 1,031 adults, 19 years and older.
a. Gallup found that 42 percent of the respondents said that they spend less than three hours watching TV on an average weekday. Based on this finding, calculate a 99 percent confidence interval for the proportion of U.S. adults who say that they spend less than three hours watching TV on an average workday.
b. Gallup found that 60 percent said they took part in some form of daily activity to keep physically fit. Find a 95 percent confidence interval for the proportion of U.S. adults who say they take part in some form of daily activity to keep physically fit.