National opinion polls tend to use sample sizes ranging from:
a. 10 to 100
b. 1,000 to 1,200
c. 50,000 to 100,000
d. 1 million to 5 million
e. 10 million to 15 million
Answer: b. 1,000 to 1,200
National opinion polls tend to use sample sizes ranging from:
a. 10 to 100
b. 1,000 to 1,200
c. 50,000 to 100,000
d. 1 million to 5 million
e. 10 million to 15 million
Answer: b. 1,000 to 1,200