- View Previous Attempt Check My Work 6 In An Article In The Journal Of Advertising Weinberger And Spotts Compare The Use 1 (45.33 KiB) Viewed 46 times
View previous attempt Check my work 6 (b) Test the hypotheses you set up in part a by using critical values and by setting a equal to 10,05, 01, and .001. How much evidence is there that the proportions of U.K. and U.S. ads using humor are different? (Round the proportion values to 3 decimal places. Round your answer to 2 decimal places.) 0 points 3.43 eBook Hint Print References Reject HO at each value of a; extremely strong evidence
View previous attempt Check my work 6 (c) Set up the hypotheses needed to attempt to establish that the difference between the proportions of U.K. and U.S. ads using humor is more than 05 (five percentage points). Test these hypotheses by using a p-value and by setting a equal to 10,05, .01, and .001. How much evidence is there that the difference between the proportions exceeds .05? (Round the proportion values to 3 decimal places. Round your z value to 2 decimal places and p-value to 4 decimal places.) 0 points z eBook 3.50 0.2978 p-value Hint Print References Reject HO at each value of a = 10 and a = .05; strong evidence
View previous attempt Check my work 6 (d) Calculate a 95 percent confidence interval for the difference between the proportion of U.K. ads using humor and the proportion of U.S. ads using humor. Interpret this interval. Can we be 95 percent confident that the proportion of U.K. ads using humor is greater than the proportion of U.S. ads using humor? (Round the proportion values to 3 decimal places. Round your answers to 4 decimal places.) 0 points 95% of Confidence Interval 0.0048. 0.1680 eBook Hint Print References Yes the entire interval is above zero.