Question

Randomly assigning treatment to experimental units allows
population inference
causal inference
both types of inference
neither type of inference​

Answer 1

Answer:

There are two forms of statistical inference:

Hypothesis testing.

Confidence interval estimation.

Answer 2

Answer:

Option C. Casual Interference

Explanation:

Option A. Population inference: Incorrect

Randomly assigning treatment to experimental units does not allows population inference because in this statistical methods aren't used to characterize the association between variables.  

Option B. Causal inference: Correct

This is correct because while randomly assigning treatment to experimental units causal relationships to associations between variables are ascribed.

Option C. both types of inference: Incorrect

Because only Casual inference is allowed.

Option D. neither type of inference​: Incorrect

Because Casual inference is allowed