Question

15. What is the margin of error for a poll with a sample size of 3000 people? Round your answer to the nearest hundredth of a percent. %

Answer 1

1.83%

Explanation:

We have that the formula for the margin of error is as follows:

`e=\frac{1}{\sqrt[]{n}}\cdot100\text{\%}`

We plug in the value of the sample size and calculate the error value, like this:

`\begin{gathered} e=\frac{1}{\sqrt[]{3000}}\cdot100\text{\%} \\ e=(1)/(54.77)\cdot100\text{\%} \\ e=1.8257\text{\% }\cong1.83\text{\%} \end{gathered}`