In the article "Humor in American, British, and German Ads" (Industrial Marketing Management, vol. 22, 1993), L. S. McCullough and R. K. Taylor study humor in trade magazine advertisements. A sample of 665 ads was categorized according to two factors: nationality (American, British, or German) and industry (29 levels, ranging from accounting to travel). A panel of judges ranked the degree of humor in each ad on a five-point scale. When the resulting data were analyzed using two-way ANOVA, the p-values for testing the significance of nationality, industry, and the interaction between nationality and industry were, respectively, .087, .000, and .046. Discuss why these p-values agree with the following verbal conclusions of the authors: "British ads were more likely to be humorous than German or American ads in the graphics industry. German ads were least humorous in the grocery and mining industries, but funnier than American ads in the medical industry and funnier than British ads in the packaging industry."