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A certain agency has a goal of reducing the death and disease caused by tobacco use and exposure to second-hand smoke. One of the many responsibilities of the agency is to collect data on tobacco use. Suppose the following data show the percentage of adults in the United States who were users of tobacco during an 11-year period: Year Percentage of Adults Who Smoke 1 2 22.6 22.2 3 21.4 20.7 5 20.7 6 20.5 7 19.6 8 20.3 9 20.4 10 11 (a) Construct a time series plot. Percent of Adults Who Smoke 25 20 15 10 5 19.1 18.7 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15- 10 5 0 0 2 4 6 8 10 12 Period Percent of Adults Who Smoke 10 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15 10- 5. 0 2 4 6 8 10 12 Period What type of pattern exists in the data? The time series plot exhibits a seasonal pattern. The time series plot exhibits a horizontal pattern. The time series plot exhibits a cyclical pattern. ◇ The time series plot exhibits a trend pattern. (b) Use simple linear regression to find the parameters for the line that minimizes MSE for this time series. (Round your answers to three decimal places.) b1 bo = = (c) One of the agency's goals is to cut the percentage of adults in the United States who were users of tobacco to 12% or less by year 20. Find the forecast of the percent of adults who smoke for year 20. (Round your answer to one decimal place.) Ŷ 20 = % Does your regression model from part (b) suggest that the agency is on target to meet this goal? Yes No If not, use your model from part (b) to estimate the year in which the agency will achieve this goal. (Enter 20 if the goal will be met by year 20.)

A certain agency has a goal of reducing the death and disease caused by tobacco use and exposure to second-hand smoke. One of the many responsibilities of the agency is to collect data on tobacco use. Suppose the following data show the percentage of adults in the United States who were users of tobacco during an 11-year period: Year Percentage of Adults Who Smoke 1 2 22.6 22.2 3 21.4 20.7 5 20.7 6 20.5 7 19.6 8 20.3 9 20.4 10 11 (a) Construct a time series plot. Percent of Adults Who Smoke 25 20 15 10 5 19.1 18.7 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15- 10 5 0 0 2 4 6 8 10 12 Period Percent of Adults Who Smoke 10 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15 10- 5. 0 2 4 6 8 10 12 Period What type of pattern exists in the data? The time series plot exhibits a seasonal pattern. The time series plot exhibits a horizontal pattern. The time series plot exhibits a cyclical pattern. ◇ The time series plot exhibits a trend pattern. (b) Use simple linear regression to find the parameters for the line that minimizes MSE for this time series. (Round your answers to three decimal places.) b1 bo = = (c) One of the agency's goals is to cut the percentage of adults in the United States who were users of tobacco to 12% or less by year 20. Find the forecast of the percent of adults who smoke for year 20. (Round your answer to one decimal place.) Ŷ 20 = % Does your regression model from part (b) suggest that the agency is on target to meet this goal? Yes No If not, use your model from part (b) to estimate the year in which the agency will achieve this goal. (Enter 20 if the goal will be met by year 20.)

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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A certain agency has a goal of reducing the death and disease caused by tobacco use and exposure to second-hand smoke. One of the many responsibilities of the agency is to collect data on tobacco use. Suppose the following data show the percentage of adults in the United States who were users of tobacco during an 11-year period: Year Percentage of Adults Who Smoke 1 2 22.6 22.2 3 21.4 20.7 5 20.7 6 20.5 7 19.6 8 20.3 9 20.4 10 11 (a) Construct a time series plot. Percent of Adults Who Smoke 25 20 15 10 5 19.1 18.7 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15- 10 5 0 0 2 4 6 8 10 12 Period Percent of Adults Who Smoke 10 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15 10- 5. 0 2 4 6 8 10 12 Period
Transcribed Image Text:A certain agency has a goal of reducing the death and disease caused by tobacco use and exposure to second-hand smoke. One of the many responsibilities of the agency is to collect data on tobacco use. Suppose the following data show the percentage of adults in the United States who were users of tobacco during an 11-year period: Year Percentage of Adults Who Smoke 1 2 22.6 22.2 3 21.4 20.7 5 20.7 6 20.5 7 19.6 8 20.3 9 20.4 10 11 (a) Construct a time series plot. Percent of Adults Who Smoke 25 20 15 10 5 19.1 18.7 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15- 10 5 0 0 2 4 6 8 10 12 Period Percent of Adults Who Smoke 10 2 4 6 8 10 12 Period Percent of Adults Who Smoke 15 10- 5. 0 2 4 6 8 10 12 Period
What type of pattern exists in the data? The time series plot exhibits a seasonal pattern. The time series plot exhibits a horizontal pattern. The time series plot exhibits a cyclical pattern. ◇ The time series plot exhibits a trend pattern. (b) Use simple linear regression to find the parameters for the line that minimizes MSE for this time series. (Round your answers to three decimal places.) b1 bo = = (c) One of the agency's goals is to cut the percentage of adults in the United States who were users of tobacco to 12% or less by year 20. Find the forecast of the percent of adults who smoke for year 20. (Round your answer to one decimal place.) Ŷ 20 = % Does your regression model from part (b) suggest that the agency is on target to meet this goal? Yes No If not, use your model from part (b) to estimate the year in which the agency will achieve this goal. (Enter 20 if the goal will be met by year 20.)
Transcribed Image Text:What type of pattern exists in the data? The time series plot exhibits a seasonal pattern. The time series plot exhibits a horizontal pattern. The time series plot exhibits a cyclical pattern. ◇ The time series plot exhibits a trend pattern. (b) Use simple linear regression to find the parameters for the line that minimizes MSE for this time series. (Round your answers to three decimal places.) b1 bo = = (c) One of the agency's goals is to cut the percentage of adults in the United States who were users of tobacco to 12% or less by year 20. Find the forecast of the percent of adults who smoke for year 20. (Round your answer to one decimal place.) Ŷ 20 = % Does your regression model from part (b) suggest that the agency is on target to meet this goal? Yes No If not, use your model from part (b) to estimate the year in which the agency will achieve this goal. (Enter 20 if the goal will be met by year 20.)
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