SlideShare a Scribd company logo
FedEx and United Parcel Service (UPS) are the world's two leading cargo carriers by volume
and revenue (The Wall Street Journal, January 27, 2004). According to the Airports Council
International, the Memphis International Airport (FedEx) and the Louisville International Airport
(UPS) are two of the ten largest cargo airports in the world. The following random samples show
the tons of cargo per day handled by these airports. Data are in thousands of tons.
Population 1 = Memphis and population 2 = Louisville
Memphis samples are as follows: 9.1, 15.1, 8.8, 10.0, 7.5, 10.5, 8.3, 9.1, 6.0, 5.8, 12.1, and 9.3
Louisville samples are as follows: 4.7, 5.0, 4.2, 3.3, 5.5, 2.2, 4.1, 2.6, 3.4, and 7.0
a. What is the point estimate of the mean of population 1 minus the mean of population2?
b. Develop a 95% confidence interval for the mean for Memphis minus the mean for Louisville.
Solution
n1=12, xbar1=9.3, s1= 2.54 (based on the data) n2=10, xbar2=3.8, s2=1.79 (based
on the data) a. the point estimate=9.3-3.8= 5.5

More Related Content

More from ANANDCROCKERKOTA

Financial capital is used to help financeA)consumption expenditure b.pdf
Financial capital is used to help financeA)consumption expenditure b.pdfFinancial capital is used to help financeA)consumption expenditure b.pdf
Financial capital is used to help financeA)consumption expenditure b.pdf
ANANDCROCKERKOTA
 
Financial analysis of the past three years financial statements for .pdf
Financial analysis of the past three years financial statements for .pdfFinancial analysis of the past three years financial statements for .pdf
Financial analysis of the past three years financial statements for .pdf
ANANDCROCKERKOTA
 
Financial accounting provides information to all users, while the ma.pdf
Financial accounting provides information to all users, while the ma.pdfFinancial accounting provides information to all users, while the ma.pdf
Financial accounting provides information to all users, while the ma.pdf
ANANDCROCKERKOTA
 
Financial analysis of the past three years (2012,2013,2014) financia.pdf
Financial analysis of the past three years (2012,2013,2014) financia.pdfFinancial analysis of the past three years (2012,2013,2014) financia.pdf
Financial analysis of the past three years (2012,2013,2014) financia.pdf
ANANDCROCKERKOTA
 
fill in the missing entries in the partially completed one way ANOVA.pdf
fill in the missing entries in the partially completed one way ANOVA.pdffill in the missing entries in the partially completed one way ANOVA.pdf
fill in the missing entries in the partially completed one way ANOVA.pdf
ANANDCROCKERKOTA
 
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdfFarrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
ANANDCROCKERKOTA
 
Fifty people are randomly selected from a population, and fourteen a.pdf
Fifty people are randomly selected from a population, and fourteen a.pdfFifty people are randomly selected from a population, and fourteen a.pdf
Fifty people are randomly selected from a population, and fourteen a.pdf
ANANDCROCKERKOTA
 
Far Side Corporation is expected to pay the following dividends over.pdf
Far Side Corporation is expected to pay the following dividends over.pdfFar Side Corporation is expected to pay the following dividends over.pdf
Far Side Corporation is expected to pay the following dividends over.pdf
ANANDCROCKERKOTA
 
Fenton Research has studied the most recent auto accidents in the St.pdf
Fenton Research has studied the most recent auto accidents in the St.pdfFenton Research has studied the most recent auto accidents in the St.pdf
Fenton Research has studied the most recent auto accidents in the St.pdf
ANANDCROCKERKOTA
 
Federal reserve capabilities that can impact the money supply are.pdf
Federal reserve capabilities that can impact the money supply are.pdfFederal reserve capabilities that can impact the money supply are.pdf
Federal reserve capabilities that can impact the money supply are.pdf
ANANDCROCKERKOTA
 
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdf
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdfFacts After 20+ years of working for other firms, Penelope (Enrolle.pdf
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdf
ANANDCROCKERKOTA
 
face is the intersection of a hyperplan and the convex body. 0-D fac.pdf
face is the intersection of a hyperplan and the convex body. 0-D fac.pdfface is the intersection of a hyperplan and the convex body. 0-D fac.pdf
face is the intersection of a hyperplan and the convex body. 0-D fac.pdf
ANANDCROCKERKOTA
 
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdfFama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
ANANDCROCKERKOTA
 
Families in the USA, a monthly magazine that discusses issues relate.pdf
Families in the USA, a monthly magazine that discusses issues relate.pdfFamilies in the USA, a monthly magazine that discusses issues relate.pdf
Families in the USA, a monthly magazine that discusses issues relate.pdf
ANANDCROCKERKOTA
 
f-1(f(g))=g, is a group homomorphismSolution .pdf
f-1(f(g))=g, is a group homomorphismSolution                    .pdff-1(f(g))=g, is a group homomorphismSolution                    .pdf
f-1(f(g))=g, is a group homomorphismSolution .pdf
ANANDCROCKERKOTA
 

More from ANANDCROCKERKOTA (15)

Financial capital is used to help financeA)consumption expenditure b.pdf
Financial capital is used to help financeA)consumption expenditure b.pdfFinancial capital is used to help financeA)consumption expenditure b.pdf
Financial capital is used to help financeA)consumption expenditure b.pdf
 
Financial analysis of the past three years financial statements for .pdf
Financial analysis of the past three years financial statements for .pdfFinancial analysis of the past three years financial statements for .pdf
Financial analysis of the past three years financial statements for .pdf
 
Financial accounting provides information to all users, while the ma.pdf
Financial accounting provides information to all users, while the ma.pdfFinancial accounting provides information to all users, while the ma.pdf
Financial accounting provides information to all users, while the ma.pdf
 
Financial analysis of the past three years (2012,2013,2014) financia.pdf
Financial analysis of the past three years (2012,2013,2014) financia.pdfFinancial analysis of the past three years (2012,2013,2014) financia.pdf
Financial analysis of the past three years (2012,2013,2014) financia.pdf
 
fill in the missing entries in the partially completed one way ANOVA.pdf
fill in the missing entries in the partially completed one way ANOVA.pdffill in the missing entries in the partially completed one way ANOVA.pdf
fill in the missing entries in the partially completed one way ANOVA.pdf
 
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdfFarrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
Farrell and Jimmy enter into a partnership agreement on May 1, 2015..pdf
 
Fifty people are randomly selected from a population, and fourteen a.pdf
Fifty people are randomly selected from a population, and fourteen a.pdfFifty people are randomly selected from a population, and fourteen a.pdf
Fifty people are randomly selected from a population, and fourteen a.pdf
 
Far Side Corporation is expected to pay the following dividends over.pdf
Far Side Corporation is expected to pay the following dividends over.pdfFar Side Corporation is expected to pay the following dividends over.pdf
Far Side Corporation is expected to pay the following dividends over.pdf
 
Fenton Research has studied the most recent auto accidents in the St.pdf
Fenton Research has studied the most recent auto accidents in the St.pdfFenton Research has studied the most recent auto accidents in the St.pdf
Fenton Research has studied the most recent auto accidents in the St.pdf
 
Federal reserve capabilities that can impact the money supply are.pdf
Federal reserve capabilities that can impact the money supply are.pdfFederal reserve capabilities that can impact the money supply are.pdf
Federal reserve capabilities that can impact the money supply are.pdf
 
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdf
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdfFacts After 20+ years of working for other firms, Penelope (Enrolle.pdf
Facts After 20+ years of working for other firms, Penelope (Enrolle.pdf
 
face is the intersection of a hyperplan and the convex body. 0-D fac.pdf
face is the intersection of a hyperplan and the convex body. 0-D fac.pdfface is the intersection of a hyperplan and the convex body. 0-D fac.pdf
face is the intersection of a hyperplan and the convex body. 0-D fac.pdf
 
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdfFama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
Fama’s Llamas has a weighted average cost of capital of 9.7 percent..pdf
 
Families in the USA, a monthly magazine that discusses issues relate.pdf
Families in the USA, a monthly magazine that discusses issues relate.pdfFamilies in the USA, a monthly magazine that discusses issues relate.pdf
Families in the USA, a monthly magazine that discusses issues relate.pdf
 
f-1(f(g))=g, is a group homomorphismSolution .pdf
f-1(f(g))=g, is a group homomorphismSolution                    .pdff-1(f(g))=g, is a group homomorphismSolution                    .pdf
f-1(f(g))=g, is a group homomorphismSolution .pdf
 

Recently uploaded

ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
Priyankaranawat4
 
MARY JANE WILSON, A “BOA MÃE” .
MARY JANE WILSON, A “BOA MÃE”           .MARY JANE WILSON, A “BOA MÃE”           .
MARY JANE WILSON, A “BOA MÃE” .
Colégio Santa Teresinha
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
GeorgeMilliken2
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
amberjdewit93
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
Jyoti Chand
 
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem studentsRHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Himanshu Rai
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
สมใจ จันสุกสี
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Celine George
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
WaniBasim
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
imrankhan141184
 
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skillsspot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
haiqairshad
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
RAHUL
 
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptxPrésentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
siemaillard
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
Dr. Mulla Adam Ali
 
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdfWalmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
TechSoup
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
adhitya5119
 
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
Nguyen Thanh Tu Collection
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
adhitya5119
 
The Diamonds of 2023-2024 in the IGRA collection
The Diamonds of 2023-2024 in the IGRA collectionThe Diamonds of 2023-2024 in the IGRA collection
The Diamonds of 2023-2024 in the IGRA collection
Israel Genealogy Research Association
 

Recently uploaded (20)

ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdfANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
 
MARY JANE WILSON, A “BOA MÃE” .
MARY JANE WILSON, A “BOA MÃE”           .MARY JANE WILSON, A “BOA MÃE”           .
MARY JANE WILSON, A “BOA MÃE” .
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
 
Wound healing PPT
Wound healing PPTWound healing PPT
Wound healing PPT
 
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem studentsRHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
 
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
คำศัพท์ คำพื้นฐานการอ่าน ภาษาอังกฤษ ระดับชั้น ม.1
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
 
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdfLiberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
 
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
 
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skillsspot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
 
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptxPrésentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
Présentationvvvvvvvvvvvvvvvvvvvvvvvvvvvv2.pptx
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
 
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdfWalmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
 
Advanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docxAdvanced Java[Extra Concepts, Not Difficult].docx
Advanced Java[Extra Concepts, Not Difficult].docx
 
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
 
Main Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docxMain Java[All of the Base Concepts}.docx
Main Java[All of the Base Concepts}.docx
 
The Diamonds of 2023-2024 in the IGRA collection
The Diamonds of 2023-2024 in the IGRA collectionThe Diamonds of 2023-2024 in the IGRA collection
The Diamonds of 2023-2024 in the IGRA collection
 

FedEx and United Parcel Service (UPS) are the worlds two leading c.pdf

  • 1. FedEx and United Parcel Service (UPS) are the world's two leading cargo carriers by volume and revenue (The Wall Street Journal, January 27, 2004). According to the Airports Council International, the Memphis International Airport (FedEx) and the Louisville International Airport (UPS) are two of the ten largest cargo airports in the world. The following random samples show the tons of cargo per day handled by these airports. Data are in thousands of tons. Population 1 = Memphis and population 2 = Louisville Memphis samples are as follows: 9.1, 15.1, 8.8, 10.0, 7.5, 10.5, 8.3, 9.1, 6.0, 5.8, 12.1, and 9.3 Louisville samples are as follows: 4.7, 5.0, 4.2, 3.3, 5.5, 2.2, 4.1, 2.6, 3.4, and 7.0 a. What is the point estimate of the mean of population 1 minus the mean of population2? b. Develop a 95% confidence interval for the mean for Memphis minus the mean for Louisville. Solution n1=12, xbar1=9.3, s1= 2.54 (based on the data) n2=10, xbar2=3.8, s2=1.79 (based on the data) a. the point estimate=9.3-3.8= 5.5