Annual retail store revenue for a technology company from 2007 to 2017 are shown below. Year Period 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 30 25 20 1 35 30 25 20- 15- 10+ 5+ 0 2 3 4 5 012 6 7 8 9 10 11 (a) Construct a time series plot. Retail Store Revenue ($ billions) 3.915 6.110 6.777 9.280 14.327 19.028 20.428 21.662 28.309 26.998 30.703 سمیہ MM 5 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Period 2 3 4 5 6 7 8 9 10 11 12 Period What type of pattern exists in the data? O The time series plot shows a cyclical pattern. O The time series plot shows a horizontal pattern. The time series plot shows a downward trend. O The time series plot shows an upward trend. O O 25 20 15 10- 5- 35 30 25 20 15 10 5 0 1 2 3 4 5 6 7 8 9 10 11 12 Period AM 0 1 2 3 4 5 6 7 8 9 10 11 12 Period Q n (b) Using statistical software, develop a linear trend equation for this time series to forecast revenue (in $ billions). (Round your numerical values to four decimal places.) T= 0.0214+2.8450 x (c) Use the trend equation developed in part (b) to forecast retail store revenue (in $ billions) for 2018. (Round your answer to one decimal place.) $34.1 ✓ billion

Annual retail store revenue for a technology company from 2007 to 2017 are shown below. Year Period 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 30 25 20 1 35 30 25 20- 15- 10+ 5+ 0 2 3 4 5 012 6 7 8 9 10 11 (a) Construct a time series plot. Retail Store Revenue ($ billions) 3.915 6.110 6.777 9.280 14.327 19.028 20.428 21.662 28.309 26.998 30.703 سمیہ MM 5 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Period 2 3 4 5 6 7 8 9 10 11 12 Period What type of pattern exists in the data? O The time series plot shows a cyclical pattern. O The time series plot shows a horizontal pattern. The time series plot shows a downward trend. O The time series plot shows an upward trend. O O 25 20 15 10- 5- 35 30 25 20 15 10 5 0 1 2 3 4 5 6 7 8 9 10 11 12 Period AM 0 1 2 3 4 5 6 7 8 9 10 11 12 Period Q n (b) Using statistical software, develop a linear trend equation for this time series to forecast revenue (in $ billions). (Round your numerical values to four decimal places.) T= 0.0214+2.8450 x (c) Use the trend equation developed in part (b) to forecast retail store revenue (in $ billions) for 2018. (Round your answer to one decimal place.) $34.1 ✓ billion

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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b and c part
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