Exhibit 20.3.A company which produces financial accounting software wants to offer better training to its customers.The training is intended to decrease the amount of time required to do complicated accounting calculations.For seven individuals,the amount of time (in minutes) to complete a complicated calculation is determined before and after completing the new training. 
Refer to Exhibit 20.3.At the 5% significance level,the critical value is:
Definitions:
Inventory
Inventory is the quantity of goods that a business has on hand, including materials, components, and finished products.
Pull System
A production strategy where processes are initiated by actual demand, aimed at reducing waste in the production process.
Lean Operations
Lean operations refer to practices aimed at maximizing value and minimizing waste within a manufacturing or service process, focusing on efficiency and the removal of non-value-adding activities.
Cross-Training
A training method where employees learn the skills and responsibilities of other positions within their organization, enhancing versatility and workforce flexibility.
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