The width of a confidence interval for $\mu_{y} \mid x_{o}$ will be increased if
A) $x_{0}$ is moved closer to $\bar{x}$.
B) $s_{e}$ is decreased.
C) $n$ is increased.
D) $t$ is increased.

Question

Quizplus · Accepted Answer

The width of a confidence interval increases with a larger t-value, which reflects a higher level of confidence or a smaller sample size. Moving $x_0$ closer to $\bar{x}$, decreasing $s_e$, or increasing $n$ would generally lead to a narrower confidence interval, not a wider one.

The Width of a Confidence Interval For μy∣xo\mu_{y} \mid x_{o}μy​∣xo​ Will Be Increased If A)

The Width of a Confidence Interval For $\mu_{y} \mid x_{o}$ Will Be Increased If
A)