Maxwell Cantor,VP of Human Resources of Asimov Aerospace Industries Inc $\mu$

Multiple Choice

Maxwell Cantor,VP of human resources of Asimov Aerospace Industries Inc.,is reviewing the technical certifications of employees in different divisions of the company.His goal is having 90% of technical employees with up-to-date certifications.The north-east division typically has maintained higher rates of up-to-date certifications than the southern division.He selects a random sample of 250 employees from the north-east division and 300 from the southern division and finds out that the number of employees with up-to-date certifications are 230 in the north-east division and 265 in the southern division.Maxwell's null hypothesis is ______.

A) $\mu$ ₁ − $\mu$ ₂ = 0
B) p₁ − p₂ > 0
C) $\mu$ ₁ − $\mu$ ₂ < 0
D) $\mu$ ₁ − $\mu$ ₂ ≥ 0
E) p₁ − p₂ = 0