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
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6954e0eb-955c-4d7b-9844-fc88881faf0b%2F046e2ba6-092d-41da-91d6-afaa61725bc6%2Fvv6h9y_processed.jpeg&w=3840&q=75)
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