4 In a survey pre-test, data were obtained from 20 participants on preference for boots 1V12 on a seven-point scale (1 = not preferred, 7 = greatly preferred). The participants also provided their evaluations of the boots on comfort 1V22, style 1V32 and durability 1V42, also on seven-point scales

(1 = poor, 7 = excellent). The resulting data are given in the following table: