EBK STATISTICS FOR BUSINESS & ECONOMICS
EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Chapter 22, Problem 22SE

Refer again to the data in exercise 21.

  1. a. Develop an estimate of the total number of deaths (in the three states) due to beatings.
  2. b. Develop an approximate 95% confidence interval for the proportion of deaths across all three states due to beatings.
  3. c. Develop an approximate 95% confidence interval for the proportion of victims who are urban.
  4. d. Develop an estimate of the total number of urban victims.

21. A U.S. Senate Judiciary Committee report showed the number of homicides in each state. In Indiana. Ohio, and Kentucky, the number of homicides was. respectively. 380,760, and 260. Suppose a stratified random sample with the following results was taken to learn more about the victims and the cause of death.

Stratum Sample Size Shootings Beatings Urban Victims
Indiana 30 10 9 21
Ohio 45 19 12 34
Kentucky 25 7 11 15
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