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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.

a. Develop an approximate 95% confidence interval for the proportion of shooting deaths in Indiana.

b. Develop an estimate for the total number of shooting deaths in Ohio.

c. Develop an approximate 95% confidence interval for the proportion of shooting deaths in Ohio.

d. Develop an approximate 95% confidence interval for the proportion of shooting deaths across all three states.

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