Reference no: EM13995476
1. A major amusement park has the following num- ber of visitors each quarter from 2005 through 2009:
a. Construct the four-quarter centered moving average for these data and determine the percentages of the moving average for the quarters.
b. Determine the seasonal indexes for the quarters.
c. Use the seasonal indexes to deseasonalize the original time series.
2. Given the degree-day data of Exercise 18.11,
(a) determine the monthly seasonal indexes for January through December, then (b) use these indexes to deseasonalize the original time series.
3. Given the data of Exercise 18.13, (a) determine the monthly seasonal indexes for January through December, then
(b) use these indexes to deseasonalize the original time series.
4. A mail-order firm has found the following sea- sonal indexes for the number of calls received each month. Below the seasonal indexes is the actual number of calls (thousands) per month during 2009.
a. Using the seasonal indexes, deseasonalize the data for 2009.
b. The president of the firm is quite pleased that the number of calls went up each month during the May through December portion of 2009. Based on the results obtained in part (a), is the firm's performance really on the increase?
|
Month:
|
J
|
F
|
M
|
A
|
M
|
J
|
J
|
A
|
S
|
O
|
N
|
D
|
|
Seasonal index:
|
110
|
105
|
90
|
60
|
70
|
75
|
85
|
95
|
100
|
105
|
140
|
165
|
|
Calls in 2009:
|
7.2
|
5.9
|
5.5
|
3.2
|
4.0
|
4.1
|
5.3
|
5.4
|
5.7
|
6.1
|
7.9
|
8.2
|
|
Why business students should learn about information systems
: In the class, we mentioned that "Every business operates as an information-based enterprise." Please write an essay that addresses why business students should learn about Information Systems
|
|
Problem regarding the quadratic trend equation
: Based on annual truck rentals over the years, a rental firm has developed the quadratic trend equation yˆ = 450 + 20x + 7.2x2, with x = 1 for 2005. Forecast y for 2013; for 2015.
|
|
What is the change in electric potential energy of electron
: Two point charges are separated by 1.00 x 10-2 m. One charge is -2.8 x 10-8 C; and the other is +2.8 x 10-8 C. The points A and B are located 2.5 x 10-3 m from the lower and upper point charges as shown. If an electron, which has a charge of 1.60 x 1..
|
|
Examine the southwall fire application
: SouthWall is a firewall application. Examine the SouthWall fire application and one additional firewall application. List and discuss three advantages and three disadvantages of the SouthWall firewall application and the one additional firewall ..
|
|
Determine the percentages of the moving average
: 1. A major amusement park has the following num- ber of visitors each quarter from 2005 through 2009: a. Construct the four-quarter centered moving average for these data and determine the percentages of the moving average for the quarters.
|
|
Construct the four-quarter centered moving average
: a. Construct the four-quarter centered moving average for these data and determine the percentages of the moving average for the quarters. b. Determine the seasonal indexes for the quarters.
|
|
Find the total electric potential at the origin
: Two point charges are on the y-axis. A 5.0 μC charge is located at y = 1.00 cm, and a -2.18 μC charge is located at y = -1.60 cm. Find the total electric potential at the origin.
|
|
Economic regulation and new technology in telecommunications
: Write a paper for me on: Economic Regulation and New Technology in Telecommunications
|
|
Construct a graph of the time series
: Construct a graph of the time series. Does the overall trend appear to be upward or downward? Determine the three-month and five-month centered moving average curves and superimpose each on the original time series.
|