Student advisors are interested in determining if the variances of the grades of day students and night students are the same. The following samples are drawn: 
Test the equality of the variances of the populations at 95% confidence.
Definitions:
Appraisal Costs
Expenses related to the testing and inspection of products to ensure they meet quality standards.
Defects
Imperfections or faults in a product that detract from the product's value or functionality.
Services
Intangible products that provide value or fulfill the needs of customers, such as consulting, maintenance, or education.
Total Quality Management
A comprehensive management approach focusing on continuous improvement in all functions of an organization to achieve high-quality products and services.
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