A Marketing Firm Needs to Replace Its Existing Network Provider

Multiple Choice

A marketing firm needs to replace its existing network provider and is considering three different providers.A primary consideration is the amount of system downtime.The following table contains the amount of network downtime (in hours) for the last five months for each network provider. For the Kruskal-Wallis test,the competing hypotheses are ___________.

A) H₀:m_A = m_B = m_C;H_A:Not all population medians are equal
B) H₀:m_A = m_B = m_C;H_A:m_A ≠ m_C
C) H₀:m_A = m_B = m_C;H_A:m_A ≠ m_B
D) H₀:m_A = m_B = m_C;H_A:m_B ≠ m_C