Confidence Interval Quiz

Enter a lower bound and upper bound for each of the questions.
You should be 95% confident that the true value lies between your lower bound and your upper bound.
If you think you know the actual value provide a narrow range. If you have no clue provide a big range.

Feel free to use commas, but don't leave anything blank.
 

What was the population of Spain as recorded in the 2006 census?
What is the area in square kilometers of Sardinia?
In what year did Einstein win the Nobel Prize in physics?
In what year was Henri Matisse born?
What was the population of Panama as recorded in the 2000 census?
How much did Roger Federer receive (in US dollars) for winning the 2006 U.S. Open?
In what year did Rembrandt die?
What is the area in square kilometers of Great Britain (the island itself)?
What was the population of Sudan as recorded in the 1993 census?
How many regular season home runs did Mark McGuire hit in 1998?