If confidence interval for population parameter µ is (180, 200), then margin of error is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 10
$\text{Margin of error} = \frac{\text{Upper limit} - \text{Lower limit}}{2}$
$= \frac{200 - 180}{2} = \frac{20}{2} = 10$
$\text{Margin of error} = 10$