Exhibit 11-3
in Order to Determine Whether or Not a Particular

question 36

Multiple Choice

Exhibit 11-3
In order to determine whether or not a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. The results of the study are shown below.
$\begin{array}{lll}&\text { Patients Cured }&\text { Patients Not Cured }\\\text { Received medication } & 70 & 10 \\\text { Received sugar pills } & 20 & 50\end{array}$ We are interested in determining whether or not the medication was effective in curing the common cold.
-Refer to Exhibit 11-3. The expected frequency of those who received medication and were cured is

• A) 70
• B) 150
• C) 28
• D) 48

---

Definitions:

Oval Window

A membrane-covered opening that leads from the middle ear to the inner ear and is involved in the process of hearing.

Eardrum

A thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.

Vestibular Sacs

Structures in the inner ear involved in maintaining balance and spatial orientation by detecting gravity and linear movement.

Semicircular Canals

Structures within the inner ear that are part of the vestibular system, helping to regulate balance and spatial orientation by detecting head movements.