A telephone company is planning a marketing survey of its 760 000 customers.?

For budget reasons that company wants a sample size of about 250.


a) Suggest a method for selecting a systematice sample.


b) What expense do you think is most likely to limit the sample size?

A telephone company is planning a marketing survey of its 760 000 customers.?
a. 760000/250 = 3040. Arrange the customer list alphabetically. Sample every 3040 th name.





b. Salary expense of people surveying the customers.