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39. What is the margin of error for a poll with a sample size of 1550 people? Round your answer to the nearest hundredth of a percent. %

39. What is the margin of error for a poll with a sample size of 1550 people? Round-example-1
39. What is the margin of error for a poll with a sample size of 1550 people? Round-example-1
39. What is the margin of error for a poll with a sample size of 1550 people? Round-example-2
User Semaj
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1 Answer

24 votes
24 votes

We must find the margin of error for a poll with a sample size of n = 1550 people.

The margin of error with a 95% confidence level is given by the following equation:


error=\pm\frac{1}{\sqrt[]{n}}\cdot100

in percentage.

Replacing the value n = 1550 in the equation above, we find that error is:


error=\pm\frac{1}{\sqrt[]{1550}}\cdot100\cong2.54

in percentage.

Answer: 2.54%

User Bubla
by
2.4k points
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