More conditions Consider each situation described. Identify the population and the sample, explain..
More conditions Consider each situation
described. Identify the population and the sample, explain what p and pn
represent, and tell whether the methods of this chapter can be used to create a
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
2430 said they had phones with them.
c) Two hundred forty 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) Twelve of the 309 employees of a small
company suffered an injury on the job last year. What can the company expect in