A study was conducted to determine if there was a difference in the humour content in British and Canadian trade magazine advertisements. In an independent random sample of 270 Canadian trade magazine advertisements, 56 were humorous. An independent random sample of 203 British trade magazines contained 52 humorous ads. Do these data provide evidence, at the 0.05 significance level, that there is a difference in the proportion of humorous ads in British versus Canadian trade magazines?