Exhibit 11.5
The following questions use the data below.
A store wants to predict quarterly sales. The owner has collected 3 years of sales data and wants your help in analyzing the data using the multiplicative seasonal effects model. 
-Refer to Exhibit 11.5. What formula should be entered in cell F7 to compute the seasonal factor using the multiplicative seasonal effects model?
Definitions:
Motor Development
The progression of muscular coordination and the ability to move and control the body, typically observed in infants and children.
Postpartum Depression (PPD)
A type of mood disorder associated with childbirth, affecting both mothers and fathers, characterized by deep sadness, low energy, anxiety, and changes in sleeping or eating patterns.
Baby Blues
A common, temporary psychological state of sadness, anxiety, or mood swings experienced by new mothers shortly after childbirth.
Respiratory Distress Syndrome
A medical condition often occurring in premature infants, characterized by difficulty breathing due to underdeveloped lungs.
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