A retail company has 50 large stores located in
different areas throughout a state. A researcher for
the company believes that employee job satisfaction
varies greatly from store to store. Which of the
following sampling methods is most appropriate to
estimate the proportion of all employees of the
company who are satisfied with their job?
A) Selecting one of the 50 stores at random and
then surveying each employee at that store
B) Selecting 10 employees from each store at
random and then surveying each employee
selected
C) Surveying the 25 highest-paid employees and the
25 lowest-paid employees
D) Creating a website on which employees can
express their opinions and then using the first
50 responses