GreenEnergy, a manufacturing company in Finland, wants to know the consumer satisfaction level for two products—A and B. A random sample of 12 consumers are invited to participate in a survey. The participants are divided into two equal groups and are asked to rate the satisfaction they received from each of the two products. The products are then ranked from 1 (extremely unsatisfied) to 10 (extremely satisfied). The participants’ results are shown in the following table. Test the null hypothesis to help GreenEnergy to identify which product offers consumers more satisfaction.

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Participant 1 23 Product A 2 3 4 45 6 Rating 3 4 262N 5 Product B Participant Rating 1 9 23 2 45 5 6 7 5 10 6 8