Age and party 2008. The Pew Research Centercollected data from national exits polls conducted byNBC News after the 2008 presidential election. Thefollowing table shows information regarding voter ageand party preference: a) What sampling strategy do you think the pollstersused? Explain.b) What percentage of the people surveyed wereDemocrats? c) Do you think this is a good estimate of the percent-age of voters in the United States who are registered Democrats? Why or why not?d) In creating this sample design, what question do youthink the pollsters were trying to answer? Republican Democrat Other Total18–29 260 390 351 100130–44 320 379 300 99945–64 329 369 300 99865+ 361 392 251 1004Total 1270 1530 1202 4002
Age and party 2008. The Pew Research Centercollected data from national exits polls conducted byNBC News after the 2008 presidential election. Thefollowing table shows information regarding voter ageand party preference: a) What sampling strategy do you think the pollstersused? Explain.b) What percentage of the people surveyed wereDemocrats? c) Do you think this is a good estimate of the percent-age of voters in the United States who are registered Democrats? Why or why not?d) In creating this sample design, what question do youthink the pollsters were trying to answer? Republican Democrat Other Total18–29 260 390 351 100130–44 320 379 300 99945–64 329 369 300 99865+ 361 392 251 1004Total 1270 1530 1202 4002
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 8E
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Topic Video
Question
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?
used? Explain.
b) What percentage of the people surveyed were
Democrats?
c) Do you think this is a good estimate of the percent-
age of voters in the United States who are registered
age 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?
think the pollsters were trying to answer?
Republican Democrat Other Total
18–29 260 390 351 1001
30–44 320 379 300 999
45–64 329 369 300 998
65+ 361 392 251 1004
Total 1270 1530 1202 4002
18–29 260 390 351 1001
30–44 320 379 300 999
45–64 329 369 300 998
65+ 361 392 251 1004
Total 1270 1530 1202 4002
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