Question

There's an experiment studying three different processes to manufacture semiconductors (chips). For each of the four processes 3 replicate chips were selected for electrical testing, and on each chip four measurements were taken at different locations. The response is resistance.

What is the EU (experimental unit) and OU (observational unit)?

Answer 1

Experimental Unit (EU) is: semiconductors (chips).

Observational Unit (OU) is:four different locations on the semiconductors (chips)

Explanation:

The Experimental Units are the physical entities on which the treatment is applied.

The Observational Units are the physical entities on which the response is measured.

In this experiment, the treatment: the different processes are applied.on semiconductors (chips). So, the Experimental Units are semiconductors (chips).

In this experiment, the response: resistance is measured at :four different locations on the semiconductors (chips). So, the Observational Units are four different locations on the semiconductors (chips).