,File:#ch01,#Chapter#1:#Introduction#to#Statistics
True/False
1. Virtually#all#areas#of#business#use#statistics#in#decision#making.
Ans:#True
Response:#See#section#1.1,#Statistics#in#Business#Diffic
ulty:#Easy
Learning#Objective:#1.1:#List#quantitative#and#graphical#examples#of#statistics#within#a#business
context.
2. The#complete#collection#of#all#entities#under#study#is#called#the#sample.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
3. A#portion#or#subset#of#the#entities#under#study#is#called#the#statistic.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
4. A#descriptive#measure#of#the#population#is#called#a#parameter.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
,5. A#census#is#the#process#of#gathering#data#on#all#the#entities#in#the#population.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
6. Statistics#is#commonly#divided#into#two#branches#called#descriptive#statistics#and#summar
y#statistics.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
7. A#descriptive#measure#of#the#sample#is#called#a#statistic.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
8. Gathering#data#from#a#sample#to#reach#conclusions#about#the#population#from#which#th
e#sample#was#drawn#is#called#descriptive#statistics.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Medium
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
, 9. Calculation#of#population#parameters#is#usually#either#impossible#or#excessively#tim
e#consuming#and#costly.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
10. The#basis#for#inferential#statistics#is#the#ability#to#make#decisions#about#population#parameter
s#without#having#to#complete#a#census#of#the#population.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
11. All#numerical#data#must#be#analyzed#statistically#in#the#same#way#because#all#of#them#ar
e#represented#by#numbers.
Ans:#False
Response:#See#section#1.4,#Data#Measurement#Difficul
ty:#Medium
Learning#Objective:#1.4:#Compare#the#four#different#levels#of#data:#nominal,#ordinal,#interval,#an
d
ratio.
12. The#manner#in#which#numerical#data#can#be#analyzed#statistically#depends#on#the#level#of#dat
a#measurement#represented#by#numbers#being#analyzed.
Ans:#True
Response:#See#section#1.4,#Data#Measurement#Difficul
ty:#Medium
Learning#Objective:#1.4:#Compare#the#four#different#levels#of#data:#nominal,#ordinal,#interval,#and
ratio.
True/False
1. Virtually#all#areas#of#business#use#statistics#in#decision#making.
Ans:#True
Response:#See#section#1.1,#Statistics#in#Business#Diffic
ulty:#Easy
Learning#Objective:#1.1:#List#quantitative#and#graphical#examples#of#statistics#within#a#business
context.
2. The#complete#collection#of#all#entities#under#study#is#called#the#sample.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
3. A#portion#or#subset#of#the#entities#under#study#is#called#the#statistic.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
4. A#descriptive#measure#of#the#population#is#called#a#parameter.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
,5. A#census#is#the#process#of#gathering#data#on#all#the#entities#in#the#population.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
6. Statistics#is#commonly#divided#into#two#branches#called#descriptive#statistics#and#summar
y#statistics.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
7. A#descriptive#measure#of#the#sample#is#called#a#statistic.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
8. Gathering#data#from#a#sample#to#reach#conclusions#about#the#population#from#which#th
e#sample#was#drawn#is#called#descriptive#statistics.
Ans:#False
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Medium
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
, 9. Calculation#of#population#parameters#is#usually#either#impossible#or#excessively#tim
e#consuming#and#costly.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
10. The#basis#for#inferential#statistics#is#the#ability#to#make#decisions#about#population#parameter
s#without#having#to#complete#a#census#of#the#population.
Ans:#True
Response:#See#section#1.2,#Basic#Statistical#Concepts#
Difficulty:#Easy
Learning#Objective:# 1.2:# define#important# statistical#terms,#including#population,#sample,#and
parameter,#as#they#relate#to#descriptive#and#inferential#statistics.
11. All#numerical#data#must#be#analyzed#statistically#in#the#same#way#because#all#of#them#ar
e#represented#by#numbers.
Ans:#False
Response:#See#section#1.4,#Data#Measurement#Difficul
ty:#Medium
Learning#Objective:#1.4:#Compare#the#four#different#levels#of#data:#nominal,#ordinal,#interval,#an
d
ratio.
12. The#manner#in#which#numerical#data#can#be#analyzed#statistically#depends#on#the#level#of#dat
a#measurement#represented#by#numbers#being#analyzed.
Ans:#True
Response:#See#section#1.4,#Data#Measurement#Difficul
ty:#Medium
Learning#Objective:#1.4:#Compare#the#four#different#levels#of#data:#nominal,#ordinal,#interval,#and
ratio.
