Purchasing agent Angela Rodriguez reported the number of sales calls she received from suppliers on each of the past 14 days.Compute the variance for her daily calls during the 14-day period.Treat the data as a sample. 
Definitions:
Staples
Basic or essential items that are regularly used and replenished, such as food, clothing, and household goods.
Office Depot
A retail company specializing in selling office supplies, technology products, and furniture to consumers and businesses.
Conglomerate Merger
A type of merger where two or more companies in unrelated business activities or industries combine.
ALCOA Case
A landmark antitrust case against the Aluminum Company of America (ALCOA), emphasizing legal issues related to monopolies and market competition.
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