e number of users of a certain website (in millions) from 2004 through 2011 follows. Period Users (Millions) 5 4 5 6 struct a time series plet Millions of Users 880 2. Millions of Users Millions of Users Millions of Users

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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
2006
3
11
2007
4
57
2008
5
146
2009
360
2010
7
608
2011
8
845
(a) Construct a time series plot.
900
900 T
900 T
900
800
800
800
800-
700
700
700-
700
600
600-
600
600
500-
500-
400-
500-
0os
400
500
400-
400-
300
300
300
300
200
200
200
200
100-
100-
100
100+
0-
of
of
of
of
4
6
8
10
2
4
6
10
2
6
8
10
2
4
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 an upward curvilinear trend.
O The time series plot exhibits a downward 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
Transcribed Image Text:The number of users of a certain website (in millions) from 2004 through 2011 follows. Year Period Users (Millions) 2004 1 1 2005 2006 3 11 2007 4 57 2008 5 146 2009 360 2010 7 608 2011 8 845 (a) Construct a time series plot. 900 900 T 900 T 900 800 800 800 800- 700 700 700- 700 600 600- 600 600 500- 500- 400- 500- 0os 400 500 400- 400- 300 300 300 300 200 200 200 200 100- 100- 100 100+ 0- of of of of 4 6 8 10 2 4 6 10 2 6 8 10 2 4 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 an upward curvilinear trend. O The time series plot exhibits a downward 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
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