/* Heating Cost Data (Freund and Wilson, Table 7.20, pg. 370) */

DATA heating;
INPUT tavg kwh;
cards;
77.5 45
80 73
78 43
78.5 61
77.5 52
83 56
83.5 70
81.5 70
75.5 53
69.5 51
70 39
73.5 55
77.5 55
79 57
80 68
79 73
76 57
76 51
75.5 55
79.5 56
78.5 72
82 73
71.5 69
70 38
68 50
66.5 37
69 43
70.5 42
63 25
64 31
64.5 31
65 32
66.5 35
67 32
66.5 34
67.5 35
75 41
75.5 51
71.5 34
63 19 
60 19
64 30
62.5 23 
63.5 35
73.5 29
68 55
77.5 56
;

RUN;