A Time Series Regression Equation for a Surfboard Manufacturing Company

question 6

Multiple Choice

A time series regression equation for a surfboard manufacturing company in Australia is given below: Y = 35 + 4Q₁ + 0.5Q₃ + 8Q₄ + 3t
With t in quarters, the origin is December 2010 and Q₁ is the indicator variable for March, Q₃ is the indicator variable for September and Q₄ is the indicator variable for December.
Which of the following is the correct value of the estimate for the number of surfboards sold by this manufacturing company in March 2015?

• A)86
• B)90
• C)93
• D)51

---

Definitions:

Emotional Intelligence

The ability to recognize, understand, manage, and reason with emotions in oneself and others, enhancing interpersonal communication and decision-making.

Work-Related Stressor

Any aspect or condition of the workplace that can cause stress, including workload, the work environment, and interpersonal relationships.

Relationships

Connections or associations between two or more people, which can be based on kinship, love, work, friendship, or other social commitments.

Self-Esteem

refers to one's overall subjective evaluation of their own worth or value.