Multiple Choice
A polling agency wants to determine the size of a random sample needed to estimate theproportion of homeowners who keep a hand gun in their home for security. The estimate shouldhave margin of error no more than 2.5 percentage points at a 95% level of confidence. Choose themost conservative answer that is closest to your calculated number, rounding to the nearest wholeperson.
A) They should poll at least 1600 people.
B) They should poll at least 1200 people.
C) They should poll at least 400 people.
D) They should poll at least 1000 people.
Correct Answer:
Verified
Correct Answer:
Verified
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