Collinsville Construction Company Purchases Steel Rods for Its Projects $\alpha$ = 005,the Critical F Value Is _____________

question 9

Multiple Choice

Collinsville Construction Company purchases steel rods for its projects. Based on previous tests,Claude Carter,Quality Assurance Manager,has recommended purchasing rods from Redding Rods,Inc.(population 1) ,rather than Stockton Steel (population 2) ,since Redding's rods had less variability in length. Recently,Stockton revised it rod shearing operation,and Claude has sampled the outputs from Redding's and Stockton's rod manufacturing processes. The results for Redding were s₁² = 0.10 with n₁ = 8,and,for Stockton,the results were s₂² = 0.05 with n₂ = 10. Assume that rod lengths are normally distributed in the population.If $\alpha$ = 0.05,the critical F value is _____________.

• A) 3.68
• B) 3.29
• C) 3.50
• D) 3.79
• E) 3.99

---

Definitions:

Moral Treatment

A 19th-century approach to mental illness focusing on humane treatment, moral discipline, and the therapeutic benefits of nature and physical work.

Custodial Care

Non-medical care provided to assist individuals with daily living activities, often in long-term care settings.

Mental Hospitals

Healthcare facilities specializing in the treatment and care of patients with severe and chronic mental disorders.

Tarantism

A disorder occurring throughout Europe between 900 and 1800 A.D. in which people would suddenly start to jump around, dance, and go into convulsions. Also known as St. Vitus’s dance.