An appliance repair technician would like to know if his clients are happy with the service he provides. Which of the following methods would be the best for choosing a systematic random sample that is a fair representation of his clients?
Give a survey to the next 50 clients who pay their bill
Assign numbers to each client and then use a random number generator to select 50 clients to survey
Call the first 50 clients in alphabetical order to answer the survey
Ask the call center to randomly start with one caller, and then select every third caller, up to 50 callers to answer the survey

Question

An appliance repair technician would like to know if his clients are happy with the service he provides. Which of the following methods would be the best for choosing a systematic random sample that is a fair representation of his clients?
Give a survey to the next 50 clients who pay their bill
Assign numbers to each client and then use a random number generator to select 50 clients to survey
Call the first 50 clients in alphabetical order to answer the survey
Ask the call center to randomly start with one caller, and then select every third caller, up to 50 callers to answer the survey