What can the company expect in future years

Reference no: EM131419746

More conditions. Consider each situation described. Identify the population and the sample, explain what p and p^ represent, and tell whether the methods of this chapter can be used to create a confidence interval.

a) A consumer group hoping to assess customer experiences with auto dealers surveys 167 people who recently bought new cars; 3% of them expressed dissatisfaction with the salesperson.

b) What percent of college students have cell phones? 2883 students were asked as they entered a football stadium, and 243 indicated they had phones with them.

c) 240 potato plants in a field in Maine are randomly checked, and only 7 show signs of blight. How severe is the blight problem for the U.S. potato industry?

d) 12 of the 309 employees of a small company suffered an injury on the job last year. What can the company expect in future years?

Reference no: EM131419746

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