How many employees should be selected from each department according to the criterion of proportionality? Use the appropriate sampling method.
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In a large manufacturing company, 20 people work in human resources, 30 in sales, 25 in accounting, and 15 in customer service. In order to conduct a survey, a sample of 40 employees is selected. How many employees should be selected from each department according to the criterion of proportionality? Use the appropriate sampling method.
Human Resources: ?
Sales Department: ?
Accounting Department: ?
Customer Service: ?
(Kindly answer PLEASE. I'll give rate. Thanks so much)
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