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Show transcribed image text (5 pts.) 5. A recent study suggests that there is a relationship between Twitter use and TV ratings. A random sample of prime-time television shows was obtained. During the month of September, the Twitter volume (x, in millions) of tweets on the day of each show and Nielsen TV rating (y) was recorded for each show. Please include 3 decimal places in al answers. The summary statistics are n=25 bo-一0.54 b1 = 0.0067958=407.6 MSE = 0.2042 Sxx = 21612.0 (2 pts.) a) Find and interpret a 99% confidence interval for the true mean TV rating when the (2 pts.) b) Find and interpret a 99% prediction interval for the TV rating of the next show when (1 pt.) c) Do you think that the true mean TV rating is less than 2.6 when there are 385 million number of tweets is 385 million. the number of tweets is 385 million. tweets? Please explain. Be sure to mention which interval, a) or b) you are using to justify your answer. Additional Problems: 12.75, 12.77 Practice Problems: 12.125 (p.637)
(5 pts.) 5. A recent study suggests that there is a relationship between Twitter use and TV ratings. A random sample of prime-time television shows was obtained. During the month of September, the Twitter volume (x, in millions) of tweets on the day of each show and Nielsen TV rating (y) was recorded for each show. Please include 3 decimal places in al answers. The summary statistics are n=25 bo-一0.54 b1 = 0.0067958=407.6 MSE = 0.2042 Sxx = 21612.0 (2 pts.) a) Find and interpret a 99% confidence interval for the true mean TV rating when the (2 pts.) b) Find and interpret a 99% prediction interval for the TV rating of the next show when (1 pt.) c) Do you think that the true mean TV rating is less than 2.6 when there are 385 million number of tweets is 385 million. the number of tweets is 385 million. tweets? Please explain. Be sure to mention which interval, a) or b) you are using to justify your answer. Additional Problems: 12.75, 12.77 Practice Problems: 12.125 (p.637)
