The number of users of a certain website (in millions) from 2004 through 2011 follows.YearPeriodUsers (Millions)20041.200522006112007457200814620096.359201076092011846(a) Construct a time series plot.900900900 -900 -800800800 -800 -700700700-700 -600600600600500-400-500500500-400400400 -300-300300-300 -200-100-200200-200100-100-100246.810468108102.46810PeriodPeriodPeriodPeriodWhat type of pattern exists?O The time series plot exhibits a downward linear trend.O The time series plot exhibits an upward linear trend.O The time series plot exhibits a downward curvilinear trend.O The time series plot exhibits an upward curvilinear trend.(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.)T =Millions of UsersMillions of Users

Time Series is the collection of observations of various data items obtained through various…

The number of users of a certain website (in millions) from 2004 through 2011 follows. Year Period Users (Millions) 2004 1 1 2005 2 6 2006 11 2007 4 57 2008 146 2009 6. 359 2010 609 2011 846 (a) Construct a time series plot. 900 800 700 600 능 5001 400 900 800 700 600- 능 500 400 300 200 100 of 900 900 - 800- 700- 600 능 5001 400 300 200 100 of 800- 700 600- 500 400 300 200 100- 300 200- 100 2 10 6. 10 4 10 4 10 Period Period Period Period What type of pattern exists? The time series plot exhibits a downward linear trend. O The time series plot exhibits an upward linear trend. O The time series plot exhibits a downward curvilinear trend. O The time series plot exhibits an upward curvilinear trend. Millions of Users

The number of users of a certain website (in millions) from 2004 through 2011 follows. Year Period Users (Millions) 2004 1 1 2005 2 6 2006 11 2007 4 57 2008 146 2009 6. 359 2010 609 2011 846 (a) Construct a time series plot. 900 800 700 600 능 5001 400 900 800 700 600- 능 500 400 300 200 100 of 900 900 - 800- 700- 600 능 5001 400 300 200 100 of 800- 700 600- 500 400 300 200 100- 300 200- 100 2 10 6. 10 4 10 4 10 Period Period Period Period What type of pattern exists? The time series plot exhibits a downward linear trend. O The time series plot exhibits an upward linear trend. O The time series plot exhibits a downward curvilinear trend. O The time series plot exhibits an upward curvilinear trend. Millions of Users

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Question

The number of users of a certain website (in millions) from 2004 through 2011 follows.
Year
Period
Users (Millions)
2004
1.
2005
2
2006
11
2007
4
57
2008
146
2009
6.
359
2010
7
609
2011
846
(a) Construct a time series plot.
900
900
900 -
900 -
800
800
800 -
800 -
700
700
700-
700 -
600
600
600
600
500-
400-
500
500
500-
400
400
400 -
300-
300
300-
300 -
200-
100-
200
200-
200
100-
100-
100
2
4
6.
8
10
4
6
8
10
8
10
2.
4
6
8
10
Period
Period
Period
Period
What type of pattern exists?
O The time series plot exhibits a downward linear trend.
O The time series plot exhibits an upward linear trend.
O The time series plot exhibits a downward curvilinear trend.
O The time series plot exhibits an upward curvilinear trend.
(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.)
T =
Millions of Users
Millions of Users

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