# Exam1 - Statistics for Business Whitten Spring 2008 Exam 1...

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Questions 1–4. The Republican Party of Iowa is concerned that continuing turmoil in Iraq may damage President Bush’s reputation in foreign aﬀairs among Iowa voters. In particular, the party would like to determine the percentage of Iowa’s registered voters who approve of Bush’s performance in foreign aﬀairs on Feb. 20, 2008. The party has at its disposal a CNN national telephone survey of 2034 registered voters conducted on Feb. 20, 2008. The survey includes respondents from all 50 states. Respon- dents are classiﬁed as residing in the Central Midwest (Illinois, Indiana, Iowa, Michigan, Minnesota, Wisconsin) or in All Other States. Response Central Midwest All Other States Approve 94 848 Disapprove 80 700 No Opinion 29 283 Consider the Six Steps of Inference. 1. Identify the population. (Hint : The population is the precise set of units of interest. ) (a) All registered voters in the Central Midwest on Feb. 20, 2008 (b) All registered voters in All Other States on Feb. 20, 2008 (c) All registered voters in the United States on Feb. 20, 2008 (d) All respondents to the survey. (e) None of the above answers is correct. 2. What is the summary of sample measurements?
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## This test prep was uploaded on 04/20/2008 for the course STA 001 taught by Professor Nelson during the Spring '08 term at University of Iowa.

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Exam1 - Statistics for Business Whitten Spring 2008 Exam 1...

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