When the Lines Representing the Effects of Two Variables Cross

question 19

Multiple Choice

When the lines representing the effects of two variables cross on a graph,you have ______.

• A)an interaction effect
• B)no interaction effect
• C)possibly an interaction effect
• D)an effect that cannot be determined

Apply the concept of standard error in the context of margin of error and confidence interval calculations.

Evaluate the impact of changes in sample size on the margin of error and vice versa.

Identify the appropriate sample size for achieving desired confidence levels and margins of error in polling and survey contexts.

Interpret confidence intervals in terms of real-world polling, research contexts, and decision-making.

---

Definitions:

Autonomic Nervous System

is a part of the nervous system that controls involuntary bodily functions such as heartbeat, digestion, and breathing.

Sensory Nervous System

The part of the nervous system that processes input from sensory organs, enabling the perception of sight, sound, touch, taste, and smell.

Somatic Nervous System

The division of the peripheral nervous system that controls the body’s skeletal muscles. Also called the skeletal nervous system.

Parasympathetic Nervous

Part of the autonomic nervous system responsible for conserving energy and promoting restful states by slowing the heart rate and increasing intestinal and gland activity.