This is Dataplot data file TUKEY433.DAT World Telephones (AT&T) Tukey, T. W. (1977) Exploratory Data Analysis, Addison-Wesley, page 433. Response Variable = number of phones (in thousands) Number of observations = 49 Number of variables per line image = 3 Order of variables per line image-- 1. Response variable = number of phones (in thousands) 2. Factor 1 = Year (7 levels: 1951, 1956 to 1961) 3. Factor 2 = Continent (7 levels) 1 = North America; 2 = Europe 3 = Asia; 4 = South America 5 = Oceania; 6 = Africa 7 = Mid America Statistical areas--2-factor analysis --comparative designs To read this file into Dataplot-- SKIP 25 READ TUKEY433.DAT Y X1 X2 # of Phones Year Continent -------------------------------------- 45939 1951 1 60423 1956 1 64721 1957 1 68484 1958 1 71799 1959 1 76036 1960 1 79831 1961 1 21574 1951 2 29990 1956 2 32510 1957 2 35218 1958 2 37598 1959 2 40341 1960 2 43173 1961 2 2876 1951 3 4708 1956 3 5230 1957 3 6062 1958 3 6856 1959 3 8220 1960 3 9053 1961 3 1815 1951 4 2568 1956 4 2695 1957 4 2845 1958 4 3000 1959 4 3145 1960 4 3338 1961 4 1646 1951 5 2366 1956 5 2526 1957 5 2691 1958 5 2868 1959 5 3054 1960 5 3224 1961 5 895 1951 6 1411 1956 6 1546 1957 6 1663 1958 6 1769 1959 6 1905 1960 6 2005 1961 6 555 1951 7 733 1956 7 773 1957 7 836 1958 7 911 1959 7 1008 1960 7 1076 1961 7