Tammy wants to do a telephone survey and she turns to you for help.Which of the following statements would mislead her?
A)Cell phone numbers are typically not included in phone surveys.
B)People who use cell phones exclusively tend to be younger.
C)There is a class bias in using telephone directory samples.
D)Telephone directories are an excellent listing of a city's population.
E)None of these statements would mislead Tammy.

Question

Quizplus · Accepted Answer

Telephone directories are not a complete listing of a city's population as not everyone chooses to have their number listed. There may also be errors or outdated information in the directory. Therefore, using only telephone directories as a sample can introduce bias and incomplete data.

Tammy Wants to Do a Telephone Survey and She Turns