Good website design can make Web navigation easier. The article “The Implications of Visualization Ability and Structure Preview Design for Web Information Search Tasks” (H. Zhang and G. Salvendy, International Journal of Human-Computer Interaction, 2001:75–95) presents a comparison of item recognition between two designs. A sample of 10 users using a conventional Web design averaged 32.3 items identified, with a standard deviation of 8.56. A sample of 10 users using a new structured Web design averaged 44.1 items identified, with a standard deviation of 10.09. Can we conclude that the mean number of items identified is greater with the new structured design?
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