The number of users of a certain website (in millions) from 2004 through 2011 follows.YearMillions of Users20042005200620072008200920102011900800700600-500-400Period Users (Millions)300200100-12345(a) Construct a time series plot.67824151159145361608846Period810Millions of UsersWhat type of pattern exists?O The time series plot exhibits a downward curvilinear trend.O The time series plot exhibits an upward linear trend.O The time series plot exhibits a downward linear trend.O The time series plot exhibits an upward curvilinear trend.900800700600500400300200100-024Period.6810Millions of Users900800700600500400300200100+0-024Period6(b) Using Minitab or Excel, develop a quadratic trend equation that can be used to forecast users (in millions). (Round your numerical values to one decimal place.)T₁ =810Millions of Users900800-700-600-500-400-300-200-100-0024Period6810Ⓡ

The question is about time series plot Given :

Answered: The number of users of a certain…

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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The number of users of a certain website (in millions) from 2004 through 2011 follows. Year Period Users (Millions) 2004 1 1 2005 2 5 2006 3 11 2007 4 59 2008 5 146 2009 6 360 2010 7 608 2011 8 846 (a) Construct a time series plot. -A time series plot contains a series of 8 points connected by line segments. The horizontal axis ranges from 0 to 10 and is labeled: Period. The vertical axis ranges from 0 to 900 and is labeled: Millions of Users. The first point is at approximately (1, 850). The rest are plotted from left to right at regular increments of 1 period in a downward, diagonal direction that becomes less steep as period increases. The last point is at approximately (8, 0). -A time series plot contains a series of 8 points connected by line segments. The horizontal axis ranges from 0 to 10 and is labeled: Period. The vertical axis ranges from 0 to 900 and is labeled: Millions of Users. The first point is at approximately (1, 0). The rest are…
The Vintage Restaurant, on Captive Island near Fort Meyers, Florida, is owned and operated by Karen Payne. The restaurant just completed its second year of operation. Below are the sales for those two years (in ten thousands of dollars). Month First Year Second Year January 57 61 February 51 75 March 58 54 April 57 56 May 68 62 June 72 71 July 60 59 August 51 75 September 68 68 October 51 50 November 71 64 December 75 58 a) Construct a time-series plot in excel. (Label axes and graph) b) Develop a six month moving average. Compute MSE and forecast the amount of sales for the next month. c) Use α = 0.2 to compute the exponential smoothing values. Compute MSE and forecast for the next month. d) Compare the result for the six month average and exponential smoothing. Which appears to provide a better…
The elevation of a lake surface (feet above sea level) varies according to the annual flow of a river that feeds it. A geological survey provided the following data from equally spaced intervals of time over a 15 year period. Time Period Elevation 1 4817 2 4819 3 4824 4 4822 5 4826 6 4831 7 4836 8 4837 9 4839 10 4837 11 4832 12 4827 13 4823 14 4818 15 4817 Make a time-series graph displaying the data.
A statistical program is recommended. The number of users of a certain website (in millions) from 2004 through 2011 follows. Year Period Users (Millions) 2004 1 1 2005 2 7 2006 3 11 2007 4 57 2008 5 146 2009 6 359 2010 7 609 2011 8 845 (a) Construct a time series plot. A time series plot contains a series of 8 points connected by line segments. The horizontal axis ranges from 0 to 10 and is labeled: Period. The vertical axis ranges from 0 to 900 and is labeled: Millions of Users. The first point is at approximately (1, 850). The rest are plotted from left to right at regular increments of 1 period in a downward, diagonal direction that doesn't appear to become more or less steep as period increases. The last point is at approximately (8, 0). A time series plot contains a series of 8 points connected by line segments. The horizontal axis ranges from 0 to 10 and is labeled: Period. The vertical axis ranges from 0 to 900 and is labeled: Millions of Users.…
corporate triple-a bond interest rates for 12 consecutive months follow.9.5 9.3 9.4 9.6 9.8 9.7 9.8 10.5 9.9 9.7 9.6 9.6a. construct a time series plot. What type of pattern exists in the data?
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The weekly demand (in cases) for a particular brand of automatic dishwasher detergent for a chain of grocery stores located in Columbus, Ohio, follows. Week Demand 1 22 2 18 3 23 4 21 5 17 6 24 7 20 8 19 9 18 10 21 (a) Construct a time series plot. -A time series plot contains a series of 10 points connected by line segments. The horizontal axis is labeled Week and ranges from 0 to 10. The vertical axis is labeled Demand (in cases) and ranges from 0 to 30. The points are plotted at regular increments of 1 week starting at week 1 and ending at week 10 and appear to vary randomly between 15 and 25 on the vertical axis. -A time series plot contains a series of 10 points connected by line segments. The horizontal axis is labeled Week and ranges from 0 to 10. The vertical axis is labeled Demand (in cases) and ranges from 0 to 30. The points are plotted at regular increments of 1 week starting at week 1 and ending at week 10. They start on the left around…
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Interpret data visualization consisting of such tools as time series plots, box plots, and scatter charts using the following data sets. Scatter charts (X versus Y) – Analyze two different and distinct relationships: C22 (X, monthly advertising dollars) versus C23 (Y, monthly revenue dollars), and C24 (X, training hours per year per call center employee) versus C25 (Y, average monthly sales revenue generated per call center employee) C22 C23 C24 C25 12000 101000 0 4779 8000 92000 0 4706 10000 110000 0 4350 13000 120000 20 5189 7000 90000 20 5140 8000 82000 20 4976 10000 93000 30 5110 6000 75000 30 5685 9000 91000 30 5618 11000 105000 40 5995 40 5628 40 5897 50 5746 50 5719 50 5782 60 4895 60 5030 60 4648
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The Hungry Person restaurant has posted its sales (in thousands of dollars) for the last two years. Month 1st Year 2nd Year January 201 216 February 216 223 March 232 240 April 201 244 May 221 232 June 213 220 July 220 211 August 214 213 September 202 217 October 217 220 November 224 212 December 236 216 a) Construct a time series plot in excel. (Label axes and graph) b) Develop a four month moving average. Compute MSE and forecast the amount of sales for the next month. c) Use α = 0.2 to compute the exponential smoothing values. Compute MSE and forecast for the next month. d) Compare the result for the four month average and exponential smoothing. Which appears to provide a better forecast based on MSE? Explain.

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