Question
In: Statistics and Probability
The number of users of a certain website (in millions) from 2004 through 2011 follows. Year...
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 | 3 | 12 |
| 2007 | 4 | 57 |
| 2008 | 5 | 144 |
| 2009 | 6 | 361 |
| 2010 | 7 | 608 |
| 2011 | 8 | 846 |
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.)
Tt =
Consider the following time series.
| Quarter | Year 1 | Year 2 | Year 3 |
|---|---|---|---|
| 1 | 72 | 69 | 63 |
| 2 | 49 | 41 | 51 |
| 3 | 58 | 60 | 53 |
| 4 | 77 | 80 | 71 |
b) Use the following dummy variables to develop an estimated regression equation to account for seasonal effects in the data:
x1 = 1 if quarter 1, 0 otherwise; x2 = 1 if quarter 2, 0 otherwise; x3 = 1 if quarter 3, 0 otherwise.
=
(c)Compute the quarterly forecasts for next year.
quarter 1 forecast
quarter 2 forecast
quarter 3 forecast
quarter 4 forecast
Solutions
orchestra answered 1 year agoRelated Solutions
Apple’s Worldwide Revenues from 2004 to 2019 is as follows: Year Worldwide Revenue in Billions 2004...
Apple’s Worldwide Revenues from 2004 to 2019 is as
follows:
Year
Worldwide Revenue in Billions
2004
8.2
2005
13.9
2006
19.3
2007
24.6
2008
37.5
2009
42.9
2010
65.2
2011
108.2
2012
156.5
2013
170.9
2014
182.8
2015
233.72
2016
215.64
2017
229.23
2018
265.6
2019
260.17
Enter the data above into the tab labeled Apple. Graph the data
in Excel and use your graph to determine what kind of time series
pattern exist. Put your answer in your spreadsheet....
A certain website wants you to build a 6-character password from the letters a through i,...
A certain website wants you to build a 6-character password from
the letters a through i, the numbers 0 − 9, or the symbols @, #, or
&. Clearly, the order of the characters in the password
matters
(a) How many passwords are there in total?
(b) How many passwords are there that consist of distinct
characters?
(c) How many passwords have the first two characters be letters,
the middle two character be one of the symbols and the last...
The flowing numbers come from an equity statement for fiscal year 2011 (in millions): Shareholders’ equity...
The flowing numbers come from an equity statement for fiscal
year 2011 (in millions):
Shareholders’ equity May 31, 2010 $2,700
Issue of shares for exercise of stock options 405
Repurchase of shares (132)
Net income 467
Unrealized loss on debt securities (23)
Tax benefit from the exercise of stock options 70
Common dividends paid (250)
Preferred dividends paid (10)
Shareholders’ equity May 31, 2011 3,227
The firm’s tax rate is 35 percent. Shareholders’ equity at May
31, 2010 includes $120...
3. Apple’s Worldwide Revenues from 2004 to 2019 is as follows: Year Worldwide Revenue in Billions...
3. Apple’s Worldwide Revenues from 2004 to 2019 is as
follows:
Year Worldwide Revenue in Billions
2004 8.2
2005 13.9
2006 19.3
2007 24.6
2008 37.5
2009 42.9
2010 65.2
2011 108.2
2012 156.5
2013 170.9
2014 182.8
2015 233.72
2016 215.64
2017 229.23
2018 265.6
2019 260.17
a. Enter the data above into the tab labeled Apple. Graph the data
in Excel and use your graph to determine what kind of time series
pattern exist. Put your answer in...
India's Current Account Assumptions (millions USD) 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013...
India's Current Account
Assumptions (millions USD)
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
Goods: exports
77,939
102,175
123,876
153,530
199,065
167,958
230,967
307,847
298,321
319,110
329,633
Goods: imports
-95,539
-134,692
-166,572
-208,611
-291,740
-247,908
-324,320
-428,021
-450,249
-433,760
-415,529
Balance on goods
-17,600
-32,517
-42,696
-55,081
-92,675
-79,950
-93,353
-120,174
-151,928
-114,650
-85,895
Services: credit
38,281
52,527
69,440
86,552
106,054
92,889
117,068
138,528
145,525
148,649
156,252
Services: debit
-35,641
-47,287
-58,514
-70,175
-87,739
-80,349
-114,739
-125,041...
The year-end net income (in millions) for a company for the years 2004-2015 are shown in...
The year-end net income (in millions) for a company for the
years 2004-2015 are shown in the provided data set
(incomedata.xlsx). Graph the best chart which effectively displays
the income data over time.
Income Data:
Year
Net income
2004
25.2
2005
32.8
2006
31.5
2007
31.3
2008
34.8
2009
37.1
2010
62.1
2011
101.6
2012
75.5
2013
83.3
2014
117.4
2015
152.6
The number of hits to a website follows a Poisson process. Hits occur at the rate...
The number of hits to a website follows a Poisson process. Hits
occur at the rate of 0.8 per minute between 7:00 P.M. and 9:00
P.M. Given below are three scenarios for the number of hits to the
website. Compute the probability of each scenario between 8:39 P.M.
and 8:47 P.M. Interpret each result.
(a) exactly seven P(7)=
(Round to four decimal places as needed.)
(b) fewer than seven
(c) at least seven
(Round to four decimal places as...
At a certain black spot, the number of traffic accidents per year follows a Po 10,000)-distribution....
At a certain black spot, the number of traffic accidents per
year follows a Po 10,000)-distribution. The number of deaths per
accident follows a Po(0.1)-distribution, and the number of
casualties per accidents follows a Po(2)-distribution. The
correlation coefficient between the number of casualties and the
number of deaths per accidents is 0.5. Compute the expectation and
variance of the total number of deaths and casualties during a
year.
The algorithm is basically as follows. The notation is slightly different from that in the website...
The algorithm is basically as follows. The notation is slightly
different from that in the website you were given, but there is no
difference in the method.
Given the initial value problem
dy/dx=f(x,y),y(a)= y_0
Euler’s Method with step size h consists in applying the
iterative formula
y_(n+1)= y_n+h∙f(x_n,y_n ),n≥0
To compute successive approximations y_1,y_2,y_3,⋯ to the (true)
values 〖y(x〗_1),〖y(x〗_2),〖y(x〗_3),⋯ of the exact solution y=y(x) at
the points x_1,x_2,x_3,⋯, respectively.
In plain English:
You want to approximate the value of dy/dx...
The algorithm is basically as follows. The notation is slightly different from that in the website...
The algorithm is basically as follows. The notation is slightly
different from that in the website you were given, but there is no
difference in the method.
Given the initial value problem
dy/dx=f(x,y),y(a)= y_0
Euler’s Method with step size h consists in applying the
iterative formula
y_(n+1)= y_n+h∙f(x_n,y_n ),n≥0
To compute successive approximations y_1,y_2,y_3,⋯ to the (true)
values 〖y(x〗_1),〖y(x〗_2),〖y(x〗_3),⋯ of the exact solution y=y(x) at
the points x_1,x_2,x_3,⋯, respectively.
In plain English:
You want to approximate the value of dy/dx...
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