ExpertMedium2 marksMultiple Choice
ACCA · Question 05 · B. Data analysis and statistical techniques
A cross-border logistics company wants to survey its drivers regarding a new routing software. The workforce is divided into three distinct groups: long-haul international drivers (20%), regional drivers (50%), and local city drivers (30%). The researchers randomly select drivers from each group in exact proportion to their representation in the total workforce.
Which sampling method is being used?
A cross-border logistics company wants to survey its drivers regarding a new routing software. The workforce is divided into three distinct groups: long-haul international drivers (20%), regional drivers (50%), and local city drivers (30%). The researchers randomly select drivers from each group in exact proportion to their representation in the total workforce.
Which sampling method is being used?
Answer options:
A.
Cluster sampling
B.
Quota sampling
C.
Stratified random sampling
D.
Systematic sampling
How to approach this question
Look for two key elements: dividing the population into distinct groups (strata) and selecting 'randomly' in proportion.
Full Answer
C.Stratified random sampling✓ Correct
Stratified random sampling involves dividing the population into distinct, non-overlapping groups (strata) and taking a random sample from each group, often proportional to the group's size in the population.
Common mistakes
Confusing stratified with quota sampling. Quota sampling also uses proportions but does not select subjects randomly.
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