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

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In an article in the Journal of Advertising, Weinberger and Spotts compare the use of humor in television ads in the United States and the United Kingdom. They found that a substantially greater percentage of U.K. ads use humor.

(a) Suppose that a random sample of 371 television ads in the United Kingdom reveals that 141 of these ads use humor. Find a point estimate of and a 95 percent confidence interval for the proportion of all U.K. television ads that use humor. (Round your answers to 3 decimal places.)

(b) Suppose a random sample of 506 television ads in the United States reveals that 133 of these ads use humor. Find a point estimate of and a 95 percent confidence interval for the proportion of all U.S. television ads that use humor. (Round your answers to 3 decimal places.)

(c) Do the confidence intervals you computed in parts a and b suggest that a greater percentage of U.K. ads use humor?

(Click to select)NoYes , the U.K. 95 percent confidence interval is (Click to select)not aboveabove the maximum value
in the confidence interval for the U.S.

= The 95 percent confidence interval is [,].

Explanation / Answer

(c) Do the confidence intervals you computed in parts a and b suggest that a greater percentage of U.K. ads use humor?

(Click to select)NoYes , the U.K. 95 percent confidence interval is (Click to select)not aboveabove the maximum value
in the confidence interval for the U.S.

= The 95 percent confidence interval is [,].

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

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