4. More conditions. Consider each situation
Chapter 19, Problem 4(choose chapter or problem)
4. More conditions. Consider each situation described.Identify the population and the sample, explain what pand represent, and tell whether the methods of thischapter can be used to create a confidence interval.a) A consumer group hoping to assess customer experienceswith auto dealers surveys 167 people whorecently bought new cars; 3% of them expressed dissatisfactionwith the salesperson.b) What percent of college students have cell phones?2883 students were asked as they entered a footballstadium, and 243 said they had phones with them.c) 240 potato plants in a field in Maine are randomlychecked, and only 7 show signs of blight. Howsevere is the blight problem for the U.S. potatoindustry?d) 12 of the 309 employees of a small company sufferedan injury on the job last year. What can the companyexpect in future years?
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