Statistics II20775 marksNumerical: Mann-Whitney U testTwo independent sample test
Use Mann-Whitney U test to assess whether the following satisfaction scores based on the performance of two different special types of gadgets at 5% level of significance. | | 1 | 2 | 3 | 4 | |---|---|---|---|---| | Gadget A | 50 | 40 | 30 | 20 | | Gadget B | 40 | 30 | 10 | 40 |
Use Mann-Whitney U test to assess whether the following satisfaction scores based on the performance of two different special types of gadgets at 5% level of significance.
| 1 | 2 | 3 | 4 | |
|---|---|---|---|---|
| Gadget A | 50 | 40 | 30 | 20 |
| Gadget B | 40 | 30 | 10 | 40 |
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Gadget A (n₁ = 4): 50, 40, 30, 20 Gadget B (n₂ = 4): 40, 30, 10, 40 Level of significance: α = 0.05 - H₀: No significant difference in satisfaction scores between Gadget A and Gadget B. - H₁: There is a significant difference (two-tailed test). Combined sorted data (N = 8): Position Score Group R...