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Which of the following is NOT true about the advantages of stratified sampling over simple random sampling? a-Stratified sampling ensures adequate representation from each stratum
Which of the following is NOT true about the advantages of stratified sampling over simple random sampling?
a-Stratified sampling ensures adequate representation from each stratum of interest
b-Stratified sampling requires less information about population
c-Stratified sampling increases precision without increasing cost
d-All of statements above are true
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