Question

There are 60 employees in the office of an I.T. company. 5 employees are to be selected using systematic random sampling for a trial of ‘work from home’ concept. Explain how can a sample be selected?

Answer 1

Here, N = 60; n = 5
∴ Sample interval k = N / n = 60 / 5 =12

• Assign numbers 1 to 60 to the employees of an IT company.
• Select a random number in sample interval 1 to 12.
• Suppose, the selected number is 7.
• Select every 12th number from 7th. Such four numbers are to be selected.
• The sample unit at 7, 19, 31, 43 and 55 will form a sample of employees.