The last variable on the data disk for census3.dat is incorrect. A corrected version can be obtained by clicking here. The Statistix 4.0 version, Minitab version and S versions are also now correct. The discussion given in the case uses the correct variable and is correct, only the data disk has the wrong variable. If you downloaded the data from this site before October 19, 1995, please download the corrected file.
The indices for the first variable in the description of the data file "geyser1.dat" should be 1 through 8 and 16 through 23. The correct entry is:
(1) An index of the date the observation was taken (1 through 8 and 16 through 23). This appears in geyser1.dat only.
The entry for the COMMUNITY variable for row number 239 is incomplete; the complete name is "Village of the Branch" (the word "Village" was omitted).
The names for variables 8 and 9 in the description of the data file "rock.dat" have been swapped. The correct order is:
(8) Change in airplay ranking from last week. (9) Change in sales ranking from last week.