Question

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. %

Answer 1

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%