Multiple Choice
A polling agency wants to determine the size of a random sample needed to estimate theproportion of homeowners who have an electronic home security system. The estimate should havemargin of error no more than 4 percentage points at a 95% level of confidence. Choose the mostconservative answer that is closest to your calculated number, rounding to the nearest wholeperson.
A) They should poll at least 1100 people.
B) They should poll at least 600 people.
C) They should poll at least 1000 people.
D) They should poll at least 500 people.
Correct Answer:
Verified
Correct Answer:
Verified
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