How does the width of the interval respond to the changes in the confidence level?
A) The width of the interval decreases with an increase in the confidence level.
B) The width of the interval increases with an increase in the confidence level.
C) The width of the interval is halved with the increase in the confidence level.
D) The width of the interval is doubled with the decrease in the confidence level.

Question

Quizplus · Accepted Answer

The width of the interval increases with an increase in the confidence level. This is because increasing the confidence level requires a larger interval to capture the expected range of values. As the confidence level increases, the interval needs to widen to cover a larger proportion of the distribution, which leads to an increased width of the interval.

How Does the Width of the Interval Respond to the Changes