After Calculating the Marginal Means in the Table Below, Which

question 8

Multiple Choice

After calculating the marginal means in the table below, which variable has a significant main effect? (assume any difference between the means implies the main effect is significant)

• A) gender
• B) day of week
• C) both gender and day of week
• D) neither gender or day of week

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Definitions:

Fraternal Twins

Twins that are born from two different eggs fertilized by two different sperm, resulting in siblings that are genetically unique from each other.

Sexual Activity

Behaviors involving the sexual organs that may or may not involve penetration, for the purposes of sexual pleasure, reproduction, or other reasons.

Countries

Geopolitical entities recognized as distinct territories with their own governance and borders.

Age 70

Refers to individuals who are seventy years old, marking a significant period in human lifespan with associated social, psychological, and physiological changes.