As a manager, you're examining the link between employee morale and customer satisfaction. You currently have data on:

Customer Satisfaction: Average customer satisfaction ratings on a $1-10$ scale.

Employee Morale: Scores from internal surveys measuring employee morale $($higher scores mean higher morale$).$

However, you realize that the condition of the store might influence both customer satisfaction and employee morale. $$Employees might have lower morale if the store is old, dirty, or poorly maintained, and this could indirectly affect customer satisfaction.$$ Suppose that your team could gather data on StoreCondition $($a composite index of store condition $-$ higher scores mean better condition$).$ If you added StoreCondition as a control in regression model $(2),$