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In an article in the Journal of Advertising, Weinberger and Spotts compare the use of humor...

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Basic Math

In an article in the Journal of Advertising, Weinberger andSpotts compare the use of humor in television ads in the UnitedStates and the United Kingdom. They found that a substantiallygreater percentage of U.K. ads use humor. (a) Suppose that a randomsample of 366 television ads in the United Kingdom reveals that 141of these ads use humor. Find a point estimate of and a 95 percentconfidence interval for the proportion of all U.K. television adsthat use humor. (Round your answers to 3 decimal places.) pˆ = The95 percent confidence interval is [ , ]. (b) Suppose a randomsample of 455 television ads in the United States reveals that 122of these ads use humor. Find a point estimate of and a 95 percentconfidence interval for the proportion of all U.S. television adsthat use humor. (Round your answers to 3 decimal places.) pˆ = The95 percent confidence interval is [ , ]. (c) Do the confidenceintervals you computed in parts a and b suggest that a greaterpercentage of U.K. ads use humor? , the U.K. 95 percent confidenceinterval is the maximum value in the confidence interval for theU.S.

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