A marketing team wants to determine which of two prospective product lines consumers might prefer. They randomly select subjects to participate in a quantitative focus group in which half of the participants were given productA, while the other half of participants were given productB. Participants completed a questionnaire that probed their affinity for the product they inspected during the focus group. Questionnaires items were collapsed into a continuous-valued composite index of product affinity. In a preliminary analysis, the marketing team ensured that the assumption of homogeneity of variance was met:

25.59

==2

4.33

= 1.29,

= 4.04 ..

4

Given the product affinity data they collected (see Table 2 below), which product are consumers more likely to prefer? Show all relevant descriptive statistics.

Table 2.Product affinity scores for ProductAand productB. Subject Product Scores

1A3.27 2A2.52 3A4.83 4A0.68 5A4.59 6A3.84 7A3.35 8A7.00 9A1.19 10A-1.32

11B2.69 12B4.04 13B3.26 14B-2.08 15B-0.44 16B0.93 17B2.97 18B4.17 19B0.30 20B2.80