A company is planning to introduce new packaging for a product that has used the same packing for over 20 years. Before it makes a decision on the new packaging it decides to ask a panel of 20 participants to rate the current and proposed packaging (using a rating scale of do not change 0–change 100) (Table 7.20). Is there any evidence that the new packaging is more favourably received compared with the older packaging (assess at 5%)?

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Participant 1 2 3 4 LO 5 6 7 8 9 10 Table 7.20 Before 80 75 84 65 40 72 41 10 16 17 After 89 82 96 68 45 79 30 222 12 24 Participant 11 12 13 14 15 16 17 18 19 20 Before 37 55 80 85 17 12 15 23 34 61 After 40 68 88 95 21 18 21 25 45 80