ENG-156 DATA SETS

• California rainfall data. This data set corresponds to the annual average of rainfall over 30 locations in California. rainfall.dat. The recorded variables are; Name of the station; average annual rainfall; altitude; latitude and distance from the coast. The data are taken from the textbook, chapter 13.
• Hospital data. This data set corresponds to the Study on the Efficacy of Nosocomial Infection Control for hospitals in the US. This is a subsample of 113 hospitals from the original survey of 338 hospitals.
  The recorded variables are:
  • length: average length of stay (in days)
  • age: average age of patients
  • risk: average estimated probability of acquiring infection in hospital (%)
  • cultur: ratio of number of cultures performed to number of patients
  • X-ray: ratio of number of X-ray performed to number of patients
  • beds: number of beds
  • med: medical school, 1=Yes, 2=No
  • reg: geographic region, 1=NE, 2=NC, 3=S, 4=W
  • cens: average number of patients per day
  • nurs: average number of nurses (full time equivalent)
  • serv: percent of 35 potential services and facilities
• Workers.dat Data corresponding to exercises 4.48 and 4.49.
• Quality.dat Data corresponding to example 5.3. These data are formatted as a list and can read into R using the function `source'.
• Problem 7.21 Data corresponding to problem 7.21 of the textbook.
• Problem 7.7 Data corresponding to problem 7.7 of the textbook.
• Math performance data This data set corresponds to the achievements of eigth-grade students in mathematics and its relationship to several explanatory variables. The data are taken from Neter, Kutner, Nachtsheim and Wasserman, `Applied Linear Statistical Models'. The recorded variables are:
  • State: 37 states and Guam, District of Columbia and the Virgin Islands.
  • Mathprof: Average proficiency in mathematics
  • Parents: Percentage of students with both parents living at home
  • Homelib: Percentage of students with three or more types of reading material at home
  • Reading: Percentage of students that read more than 10 pages a day
  • Tvwatch: Percentage of students who watch more than six hours of TV per day
  • Absences: Percentage of students absent three or more days last month.