Milestone 1 introduction to statistics

1 The administrator of a hospital conducted a survey among patients in the cardiology wing to determine service levels of the nursing staff in the hospital. Which of the following explains how the results of the survey could be biased?     The sample does not include the doctors of the hospital. The sample does not include all the patients in the hospital. The sample does not include the board members of the hospital. The sample does not include the staff members of the hospital. RATIONALE Since the patients asked are only from the cardiology unit, it might not represent patients in all sections of the hospital. It would be better to include all areas of the hospital. CONCEPT Bias 2 The following shows the Consumer Price Index (CPI) for the years 2000-2005. All of the values use a reference year of 1983.