Business Analytics
3rd Edition
ISBN: 9780135231678
Author: Evans, James R. (james Robert)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 2, Problem 3.1CYU
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Consider the time series X₁ and Y₁ = (I – B)² (I – B³)Xt. What transformations were
performed on Xt to obtain Yt?
seasonal difference of order 2
simple difference of order 5
seasonal difference of order 1
seasonal difference of order 5
simple difference of order 2
Calculate the 90% confidence interval for the population mean difference using the data in the attached image. I need to see where I went wrong.
Microsoft Excel snapshot for random sampling: Also note the formula used for the last
column
02
x✓ fx =INDEX(5852:58551, RANK(C2, $C$2:$C$51))
A
B
1
No.
States
2
1
ALABAMA
Rand No.
0.925957526
3
2
ALASKA
0.372999976
4
3
ARIZONA
0.941323044
5
4 ARKANSAS
0.071266381
Random Sample
CALIFORNIA
NORTH CAROLINA
ARKANSAS
WASHINGTON
G7
Microsoft Excel snapshot for systematic sampling:
xfx INDEX(SD52:50551, F7)
A
B
E
F
G
1
No.
States
Rand No. Random Sample
population
50
2
1 ALABAMA
0.5296685 NEW HAMPSHIRE
sample
10
3
2 ALASKA
0.4493186 OKLAHOMA
k
5
4
3 ARIZONA
0.707914 KANSAS
5
4 ARKANSAS 0.4831379 NORTH DAKOTA
6
5 CALIFORNIA 0.7277162 INDIANA
Random Sample
Sample Name
7
6 COLORADO 0.5865002 MISSISSIPPI
8
7:ONNECTICU 0.7640596 ILLINOIS
9
8 DELAWARE 0.5783029 MISSOURI
525
10
15
INDIANA
MARYLAND
COLORADO
Chapter 2 Solutions
Business Analytics
Ch. 2 - Explain the difference between a data set and a...Ch. 2 - For the Monthly Product Sales Excel file, use the...Ch. 2 - For the Monthly Product Sales Excel file, use the...Ch. 2 - What does the term filtering mean in the context...Ch. 2 - Convert the Credit Risk database to an Excel...Ch. 2 - Sort the data in the purchase orders database from...Ch. 2 - Prob. 2.4CYUCh. 2 - Prob. 3.1CYUCh. 2 - Prob. 3.2CYUCh. 2 - Prob. 3.3CYU
Ch. 2 - Prob. 4.1CYUCh. 2 - In the Purchase Orders database, what will =...Ch. 2 - Prob. 4.3CYUCh. 2 - Prob. 5.1CYUCh. 2 - Prob. 5.2CYUCh. 2 - Prob. 5.3CYUCh. 2 - Prob. 5.4CYUCh. 2 - Prob. 6.1CYUCh. 2 - Prob. 6.2CYUCh. 2 - Prob. 6.3CYUCh. 2 - The Excel file MBA Motivation and Salary...Ch. 2 - Prob. 2PECh. 2 - The Budget Forecasting database shows estimated...Ch. 2 - Convert the Store and Regional Sales database to...Ch. 2 - Convert the Purchase Orders database to an Excel...Ch. 2 - Prob. 6PECh. 2 - The Excel file Corporate Default Database...Ch. 2 - Open the Excel file Store and Regional Sales...Ch. 2 - In the Excel file Automobile Quality, search for...Ch. 2 - In the Purchase Orders database, conduct a Pareto...Ch. 2 - Conduct a Pareto analysis for the number of...Ch. 2 - Prob. 12PECh. 2 - In the Sales Transactions database, use Excels...Ch. 2 - Filter the data in the Bicycle Inventory database...Ch. 2 - Use the Excel file Credit Risk Data that was...Ch. 2 - Apply the Advanced Filter to the Credit Risk Data...Ch. 2 - Prob. 17PECh. 2 - Prob. 18PECh. 2 - Modify the data in the Base Data worksheet in the...Ch. 2 - Prob. 20PECh. 2 - Figure 2.41 shows the 2016 U.S. federal income tax...Ch. 2 - For the Bicycle Inventory database, write a...Ch. 2 - Prob. 23PECh. 2 - A manager needs to identify some information from...Ch. 2 - The Excel file SP 500 provides open, high, low,...Ch. 2 - Enhance the Sales Transactions database file to...Ch. 2 - Prob. 27PECh. 2 - For this exercise, use the Purchase Orders...Ch. 2 - Use INDEX and MATCH functions to fill in a table...Ch. 2 - Prob. 30PECh. 2 - Prob. 31PECh. 2 - Prob. 32PECh. 2 - Prob. 33PECh. 2 - Prob. 34PECh. 2 - A college graduate who is living in Cincinnati...Ch. 2 - The Excel file Payroll Data provides hourly...Ch. 2 - Construct PivotTables showing the counts of gender...Ch. 2 - Prob. 38PECh. 2 - Prob. 39PECh. 2 - Prob. 40PECh. 2 - Prob. 2.1C
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