A study was conducted to determine if there was a difference in the humor content in British and American trade magazine advertisements. In an independent random sample of 287 American trade magazine advertisements, 65 were humorous. An independent random sample of 184 British trade magazines contained 42 humorous ads. (a) State the decision rule for 0.10 significance level: Ho NA = ng H,: TA # B . (Negative values should be indicated by a minus sign) . (Round your answers to 2 decimal places) Reject Hifz (b)Compute the value of the test statistic. . (use 3 dp in your calculation of pooled variance, see formula sheet on ELE. but otherwise dont round intermediate numbers) . (Negative values should be indicated by a minus sign) . (Round your answer to 2 decimal places) Test Statistic= Does this data provide evidence that there is a difference in the proportion of humorous ads in British versus American trade magazines? Use the 0.10 significance level. v Ho There is evidence to indicate that there is a difference in the proportion of humorous ads in British versus American trade magazines