A group to be surveyed is randomly selected from employees who have been with the company for 5 years. Name the type of sampling used and is the sample biased?

Question

A company conducts a survey every spring to measure the morale of its employees. A group to be surveyed is randomly selected from all employees who have been with the company for exactly 5 years. Name the type of sampling used and explain if you think the sample is biased

Answer 1

The company is doing a random sample among 5-year employees. You'll have to decide whether you think focusing only on 5-year employees will give the company an accurate depiction of the morale of all of its employees.