Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
6th Edition
ISBN: 9781337115186
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 17, Problem 50SE
a.
To determine
Find the seasonal indexes for the four quarters using time series decomposition.
b.
To determine
Identify the largest seasonal effect, and check whether the result appears reasonable or not.
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Students have asked these similar questions
The following table shows the past two years of quarterly sales information. Assume that there are both trend and seasonal factors and that the seasonal cycle is one year.
QUARTER
SALES
1
220
2
232
3
201
4
193
5
163
6
194
7
155
8
136
Use regression and seasonal indexes to forecast quarterly sales for the next year.
Note: Do not round intermediate calculations. Round your answers to the nearest whole number.
Suppose a firm has had the following historic sales figures.
Year: 2016 2017 2018 2019 2020
Sales $2,570,000 $3,750,000 $4,380,000 $5,010,000 $5,520,000
What would be the forecast for next year’s sales using regression to estimate a trend?
The accompanying table gives the stock market indices for a certain company on the stock market. Use simple linear regression to forecast the data. What would be
the forecasts for the next three days?
Click the icon to view the stock market indices for the company on the stock market.
Select the graph that shows the correct trendline forecast for the given data.
O Click here to view the graph d.
O
Click here to view the graph b.
•
Click here to view the graph a.
O
Click here to view the graph c
What would be the forecast for the next three days?
(Round to two decimal places as needed.)
Index
Date
10/2/2010
10/3/2010
10/4/2010
B
F
G
A
H
Date
Index
9/3/2010
10448.19
9/7/2010
10340.44
9/8/2010 10386.08
9/9/2010 10414.94
9/10/2010 10461.14
9/13/2010 10545.98
9/14/2010 10527.68
9/15/2010 10574.14
0 9/16/2010
10596.74
1 9/17/2010
10606.46
2 9/20/2010 10752.05
3 9/21/2010 10759.95
4 9/22/2010 10738.52
5 9/23/2010 10661.03
16 9/24/2010 10859.59
17 9/27/2010 10810.12
18 9/28/2010 10856.59
19…
Chapter 17 Solutions
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Ch. 17.2 - 1. Consider the following time series...Ch. 17.2 - 2. Refer to the time series data in exercise 1....Ch. 17.2 - Prob. 3ECh. 17.2 - 4. Consider the following time series...Ch. 17.3 - Consider the following time series...Ch. 17.3 - Consider the following time series...Ch. 17.3 - Refer to the gasoline sales time series data in...Ch. 17.3 - Prob. 8ECh. 17.3 - 9. With the gasoline time series data from Table...Ch. 17.3 - 10. With a smoothing constant of α = .2, equation...
Ch. 17.3 - For the Hawkins Company, the monthly percentages...Ch. 17.3 - Corporate triple-A bond interest rates for 12...Ch. 17.3 - The values of Alabama building contracts (in $...Ch. 17.3 - The following time series shows the sales of a...Ch. 17.3 - Ten weeks of data on the Commodity Futures Index...Ch. 17.3 - Prob. 16ECh. 17.4 - Consider the following time series...Ch. 17.4 - Prob. 18ECh. 17.4 - Prob. 19ECh. 17.4 - Prob. 20ECh. 17.4 - Prob. 21ECh. 17.4 - Prob. 22ECh. 17.4 - The president of a small manufacturing firm is...Ch. 17.4 - The following data shows the average interest rate...Ch. 17.4 - Quarterly revenue ($ millions) for Twitter for the...Ch. 17.4 - Giovanni Food Products produces and sells frozen...Ch. 17.4 - The number of users of Facebook from 2004 through...Ch. 17.5 - Consider the following time series.
Construct a...Ch. 17.5 - Consider the following time series...Ch. 17.5 - The quarterly sales data (number of copies sold)...Ch. 17.5 - Air pollution control specialists in southern...Ch. 17.5 - South Shore Construction builds permanent docks...Ch. 17.5 - Prob. 33ECh. 17.5 - Prob. 34ECh. 17.6 - Consider the following time series...Ch. 17.6 - Refer to exercise 35.
Deseasonalize the time...Ch. 17.6 - The quarterly sales data (number of copies sold)...Ch. 17.6 - Three years of monthly lawn-maintenance expenses...Ch. 17.6 - Air pollution control specialists in southern...Ch. 17.6 - Electric power consumption is measured in...Ch. 17 - The weekly demand (in cases) for a particular...Ch. 17 - The following table reports the percentage of...Ch. 17 - United Dairies, Inc., supplies milk to several...Ch. 17 - Annual retail store revenue for Apple from 2007 to...Ch. 17 - The Mayfair Department Store in Davenport, Iowa,...Ch. 17 - Prob. 47SECh. 17 - The Costello Music Company has been in business...Ch. 17 - Consider the Costello Music Company problem in...Ch. 17 - Prob. 50SECh. 17 - Refer to the Costello Music Company time series in...Ch. 17 - Prob. 52SECh. 17 - Refer to the Hudson Marine problem in exercise 52....Ch. 17 - Refer to the Hudson Marine problem in exercise...Ch. 17 - Refer to the Hudson Marine data in exercise...Ch. 17 - Forecasting Food and Beverage Sales
The Vintage...Ch. 17 - The Carlson Department Store suffered heavy damage...
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