Age and party 2008 The Pew Research Center collected data from national exits polls conducted by NBC News after the 2008 presidential election. The following table shows information regarding voter...

Age and party 2008 The Pew Research Center collected data from national exits polls conducted by NBC News after the 2008 presidential election. The following table shows information regarding voter age and party preference:

a) What sampling strategy do you think the pollsters used? Explain.

 b) What percentage of the people surveyed were Democrats?

 c) Do you think this is a good estimate of the percentage of voters in the United States who are registered Democrats? Why or why not?

 d) In creating this sample design, what question do you think the pollsters were trying to answer?