Answer:
The answer is b. 0.029
Step-by-step explanation:
Margin error for a sample size of 1200 is 2.9%.
The Margin error formula can be represented as:
[tex]z \times \: \sqrt{ \frac{p0(1 - po)}{n} } [/tex]
Where
z = critical value
n = sample size
[tex]p0 = sample \: proportion[/tex]