The Following Output from MINITAB Presents a Confidence Interval for the Mean

question 16

Multiple Choice

The following output from MINITAB presents a confidence interval for the mean difference between matched pairs
$\begin{array} { c c c c c } & \mathrm { N } & \text { Mean } & \text { StDev } & \text { SEMean } \\\text { Difference } & 18 & 11.2063 & 3.1508 & 0.742651\end{array}$
95% CI for mean difference: (9.639447,12.773153)
What is the point estimate of $\mu _ { d } ?$

• A) 11.2063
• B) 17
• C) 3.1508
• D) 0.742651

---

Definitions:

Epiglottis

A leaf-shaped flap in the throat that prevents food and drink from entering the windpipe when swallowing.

Choanae

The two openings found at the back of the nasal cavity, leading into the throat, critical for breathing and speech.

Vocal Ligaments

Fibrous bands located within the larynx that vibrate to produce sound as air passes over them.

Vestibular Ligaments

Fibrous structures that support the vestibule of the ear, contributing to its stability and function.