According to a Gallup poll, in 2012 almost a third of Americans named Iran their country’s greatest enemy. That number matched public sentiment in the United States toward Saddam Hussein’s Iraq at the time of the 2003 invasion. The line graphs show the percentage of Americans who considered either Iraq or Iran their country’s greatest enemy from 2001 through 2012. Use this information to solve Exercises 49-50.
a. Find an estimate for the percentage of Americans who considered Iran their country’s greatest enemy in 2001.
b. Between which two years did the percentage of Americans who considered Iran their country’s greatest enemy increase at the greatest rate?
c. In which year did 12% of Americans consider Iran their country’s greatest enemy?
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
EBK THINKING MATHEMATICALLY
- Out of 1000 people surveyed, 850 said they like chocolate. What proportion of people surveyed said they do not like chocolate?arrow_forwardUse the table to answer the following questions. Year U.S population (millions) Traffic fatalities Licensed drivers(millions) Vehicle-miles (trillions) 1995 263 41,817 177 2.4 2015 321 35,092 218 3.1 Find and compare death rates per person and per 100,000 people for traffic fatalities per two years. Express the 1995 and 2015 fatality rates in deaths per100 million vehicle-miles traveled. Express the 1995 and 2015 fatality rates in deaths per 100,000 population. Express the 1995 and 2015 fatality rates in deaths per 100,000 licensed driversarrow_forwardA report indicated that two-thirds of all patients on a given day had a CBC. How many out of every 100 patients had a CBC? Report the answer correct to the nearest whole number.arrow_forward
- On average, how many emails would a person who is 48 years old, receive per day? Emails per Day by Age 40 30 20 10 12 24 36 48 60 72 Age. Average Emails per Dayarrow_forwardA management survey for a company surveyed 235 employees. 105 of the employees surveyed were females. What percentage were males?arrow_forwardIn a survey of middle school students, 70% play basketball and 40% play basketball and football. Of those that play basketball, what percentage also plays football?arrow_forward
- There were 637 cases of identity theft reported last year in South Dakota. The population of South Dakota is 0.9 million. Which of the following best interprets the identity theft per capita for South Dakota? a.There were approximately 7 cases of identity theft in for every 10,000 people in South Dakota. b.Approximately 1412 people in South Dakota were impacted by each case of identity theft. c.There were 1413 cases of identity theft per person in South Dakota. d.There were approximately 6370 cases of identity theft per every million people in South Dakota. e.Approximately 0.7% of South Dakota suffered some form of identity theft.arrow_forwardUse the table below and assume a population of 317 million. How much greater is the risk of death from Alzheimer's disease than the risk of death from diabetes? Leading causes of death in a certain country in a recent year Cause Deaths Cause Deaths Heart disease 596,600 Alzheimer's disease 84,700 Cancer 575,300 Diabetes 73,100 Chronic respiratory diseases 143,200 Pneumonia/Influenza 53,500 Stroke 128,700 Kidney disease 45,400 Accidents 122,300 Suicide 38,900 The risk of death from Alzheimer's disease is about how many times greater than risk of death from diabetesarrow_forwardSeveral years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…arrow_forward
- Several years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 63% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is. (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…arrow_forwardSuppose that the results of a survey show that 59% of people consider summer as their favorite season. How many people should be surveyed in order to have a margin of error of 2%? Round up to the nearest whole number, if necessary. In order to have a margin of error of 2%, How many people should be surveyed.arrow_forwardA box office analyst seeks to predict opening weekend box office gross for movies. Toward this goal, the analyst plans to use online trailer views as a predictor. For each of the 66 movies, the number of online trailer views from the release of the trailer through the Saturday before a movie opens and the opening weekend box office gross (in millions of dollars) are collected and stored in the accompanying table. Complete the parts below.arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL