A Drug Company Wanted to Test a New Arthritis Medication

question 36

Multiple Choice

A drug company wanted to test a new arthritis medication. The researchers found 300 adults aged 25-35 andrandomly assigned them to two groups. The first group received the new drug, while the second received aplacebo. After one month of treatment, the percentage of each group whose arthritis symptoms decreased wasrecorded and compared. What type of experimental design is this?

• A) completely randomized design
• B) randomized block design
• C) matched-pairs design
• D) single-blind design

---

Definitions:

Normally Closed

A switch configuration where the contacts are in contact, allowing current to flow without activation.

Normally Open

A type of switch or contact arrangement that is open (disconnected) in its default state, allowing current flow when actuated.

Common Terminal

A connection point used in electrical devices where multiple circuits can meet and connect.

Operating Parameter

A variable that affects the operation of a system and can be adjusted to control the system's behavior.