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Demand for stereo headphones and MP3 players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number of joggers continues to expand, so Nina expects demand for headsets to also expand, because, as yet, no safety laws have been passed to prevent joggers from wearing them. Demand for the players for last year was as follows: MONTH January February March April May June July August September October November December Month (Algo) January February a. Using linear regression analysis, what would you estimate demand to be for each month next year? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) March April May June July August September October DEMAND (UNITS) 4,115 4,215 3,915 4,315 4,915 4,615 5,215 Answer is complete but not entirely correct. Forecast 6,181.67 6.373.97 November December 4,815 5,315 5,615 6,215 5,915 6,566.28✔✔ 6,658.59 X 6,950.89 7,143.21 7,355.21 7,527.82 7,720.13 7,912.44 8,104.74 8,297.05 b. To be reasonably confident of meeting demand, Nina decides to use 4 standard errors of estimate for safety. How many additional units should be held to meet this level of confidence? (Do not round Intermediate calculations. Round your answer to the nearest whole number.)

Demand for stereo headphones and MP3 players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number of joggers continues to expand, so Nina expects demand for headsets to also expand, because, as yet, no safety laws have been passed to prevent joggers from wearing them. Demand for the players for last year was as follows: MONTH January February March April May June July August September October November December Month (Algo) January February a. Using linear regression analysis, what would you estimate demand to be for each month next year? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) March April May June July August September October DEMAND (UNITS) 4,115 4,215 3,915 4,315 4,915 4,615 5,215 Answer is complete but not entirely correct. Forecast 6,181.67 6.373.97 November December 4,815 5,315 5,615 6,215 5,915 6,566.28✔✔ 6,658.59 X 6,950.89 7,143.21 7,355.21 7,527.82 7,720.13 7,912.44 8,104.74 8,297.05 b. To be reasonably confident of meeting demand, Nina decides to use 4 standard errors of estimate for safety. How many additional units should be held to meet this level of confidence? (Do not round Intermediate calculations. Round your answer to the nearest whole number.)

Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter10: Systems Of Equations And Inequalities
Section10.FOM: Focus On Modeling: Linear Programming
Problem 14P
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Problem 18-14 (Algo) Demand for stereo headphones and MP3 players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number of joggers continues to expand, so Nina expects demand for headsets to also expand, because, as yet, no safety laws have been passed to prevent joggers from wearing them. Demand for the players for last year was as follows: MONTH January February March April May June July August September October November December Month a. Using linear regression analysis, what would you estimate demand to be for each month next year? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) January February Answer is complete but not entirely correct. Forecast 6,181.67 6,373.97 6,566.28 6,658.59 x 6,950.89 7,143.21✔ March April May June DEMAND (UNITS) 4,115 4,215 3,915 4,315 July August September October 4,915 4,615 5,215 November December 4,815 5,315 5,615 6,215 5,915 7,355.21 X 7,527.82 7,720.13 7,912.44✔ 8,104.74✔✔ 8,297.05 b. To be reasonably confident of meeting demand, Nina decides to use 4 standard errors of estimate for safety. How many additional units should be held to meet this level of confidence? (Do not round Intermediate calculations. Round your answer to the nearest whole number.) Answer is complete but not entirely correct. Additional units 2,912,821
Transcribed Image Text:Problem 18-14 (Algo) Demand for stereo headphones and MP3 players for joggers has caused Nina Industries to grow almost 50 percent over the past year. The number of joggers continues to expand, so Nina expects demand for headsets to also expand, because, as yet, no safety laws have been passed to prevent joggers from wearing them. Demand for the players for last year was as follows: MONTH January February March April May June July August September October November December Month a. Using linear regression analysis, what would you estimate demand to be for each month next year? (Do not round Intermediate calculations. Round your answers to 2 decimal places.) January February Answer is complete but not entirely correct. Forecast 6,181.67 6,373.97 6,566.28 6,658.59 x 6,950.89 7,143.21✔ March April May June DEMAND (UNITS) 4,115 4,215 3,915 4,315 July August September October 4,915 4,615 5,215 November December 4,815 5,315 5,615 6,215 5,915 7,355.21 X 7,527.82 7,720.13 7,912.44✔ 8,104.74✔✔ 8,297.05 b. To be reasonably confident of meeting demand, Nina decides to use 4 standard errors of estimate for safety. How many additional units should be held to meet this level of confidence? (Do not round Intermediate calculations. Round your answer to the nearest whole number.) Answer is complete but not entirely correct. Additional units 2,912,821
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