To estimate the impact of new technologies on fuel efficiency for motor vehicles, a consulting company requests the opinions of established researchers in the automobile industry, the clean-tech industry, government research labs, and universities.

For the following reports about statistical studies, identify the following items (if possible). If you can’t tell, then say so—this often happens when we read about a survey.

a) The population

b) The population parameter of interest

c) The sampling frame

d) The sample

e) The sampling method, including whether or not randomization was employed

f) Any potential sources of bias you can detect and any problems you see in generalizing to the population of interest