Multiple Choice
Which of the following is a nonobservation error?
A) A researcher deliberately excludes those under 21 years of age from the survey.
B) In an opinion poll,those incarcerated in a state penitentiary are intentionally excluded from the sample.
C) In an opinion survey,the sample is selected from a mailing list of car registrations.
D) A marketer conducting research for a dog food manufacturer purposely restricts the sample to dog owners.
E) None of the above.
Correct Answer:
Verified
Correct Answer:
Verified
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