A Professional Organization Is Attempting to Determine Whether Salaries of Hospital

question 34

Multiple Choice

A professional organization is attempting to determine whether salaries of hospital CFOs differ by geographical region.Five hospital CFOs were randomly selected from each of the following four regions of the United States: East,Midwest,South,and West.Each CFO was than asked his or her annual salary.The distributions of salaries were highly skewed.The table below summarizes the results of the Kruskal-Wallis test obtained from Mega-Stat/Excel. At a significance level of .05,which one of the following statements is correct regarding the following null hypothesis? H₀: The four populations under consideration have identical locations

• A)We reject H₀ and conclude there is very strong evidence that the median hospital CFO salaries differ among all four regions in the United States.
• B)We failed to reject H₀ and conclude there is not sufficient evidence that the median hospital CFO salaries differ among any of the four regions of the United States.
• C)We failed to reject H₀ and conclude there is only adequate evidence that the median hospital CFO salaries differ between at least two of the four regions in the United States.
• D)We reject H₀ and conclude there is strong evidence that the median hospital CFO salaries differ between at least two of the four regions in the United States.
• E)We failed to reject H₀ and conclude that all 4 populations under consideration are identical in their locations.

---

Definitions:

Epidermal Growth Factor

A protein that stimulates cell growth, proliferation, and differentiation by binding to its receptor EGFR, involved in the repair of tissues and organs.

Ventricle

Cavities within the brain that produce and contain cerebrospinal fluid, which cushions the brain and spinal cord.

Progenitor Cells

Cells that have a capacity to differentiate into a specific type of cell but are less flexible than stem cells in their differentiation potential.

Glia

Non-neuronal cells in the central and peripheral nervous system that provide support and protection for neurons.