describe strengths & weaknesses of descriptive statistics vs cross sectional data

descriptive stat article: McCue, al (2007 sept/oct) Assessing the performance of freestanding hospitals. Jr. of healthcare Management

cross-sectional article: Ozgen, H et al (2002 Ju). A nat’l study of efficiency for dialysis centers: A examination…. found in Health Services Research

describe strengths and weaknesses of each of the studies in the articles, as well as the sample design(s). take into account the sampling & measurement.
propose potential remedies for the areas of weaknesses