Test Bank For
Statistics Unlocking the Power of Data, 3rd Edition Robin H. Lock, Patti Frazer Lock, Kari Lock
Morgan, Eric F. Lock, Dennis F. Lock
Chapter 1-10
Chapter..1 Collecting..Data
1.1 The..Structure..of..Data
Use..the..following..to..answer..the..questions..below:
A..high..school..senior..is..collecting..data..on..the..colleges..in..which..she..is..interested...Identify..t
he. . variables..as..either..categorical..or..quantitative.
1) Type..of..college:..Private..or..Public..colle
ge. . Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
1
,2) Tuition:..in..thousands..of..doll
ars. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
3) State:..the..state..in..which..the..college..is..loca
ted. . Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
4) Zip..Code:..the..zip..code..of..the..part..of..the..country..in..which..the..college..is..lo
cated. . Answer:...... Categorical
Diff:..2 Type:..SA Var:..1
L.O.:...... 1.1.2
5) Enrollment:..the..number..of..students..enrolled..at..the..coll
ege. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
6) Student-
Faculty..Ratio:..the..number..of..students..divided..by..the..number..of..faculty. . Answ
er:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
7) Graduation..Rate:..as..a..percenta
ge. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
Use..the..following..to..answer..the..questions..below:
A..high..school..senior..is..collecting..data..on..the..colleges..in..which..she..is..interested,..includi
ng. . the..following..variables:..Type..of..college,..Tuition,..State,..Enrollment,..Student-
Faculty..Ratio,. . Graduation..Rate
8) What..are..the..cases..in..the..high..school..senior's..dataset?
A) Colleges
B) Tuition
C) Graduation..Rate
D) State..An
swer:...... A
Diff:..2 Type:..BI Var:..1
L.O.:...... 1.1.1
9) Refer..to..the..variables..collected..by..the..high..school..senior..looking..at..colleges...Identif
y..a. . question..we..might..ask..about..any..one..of..these..individual..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include:
2
,Type..of..college:..Is..she..considering..more..private..schools..than..public..schools?
Tuition:..What..is..the..average..tuition..of..the..colleges..she..is..considering?..What..is..the.."cheapest".
. school..she..is..considering?..What..is..the..most..expensive..school..she..is..considering?
State:..Is..there..a..state..that..she..seems..to..prefer?
Enrollment:..What..is..the..average..size..of..the..colleges..she..is..considering?..What..is..the..largest. . c
ollege..she..is..considering?..What..is..the..largest..college..she..is..considering?
Student-
Faculty..Ratio:..What..is..the..average..SF..ratio..for..the..schools..she..is..considering?..What..is. . the..s
mallest..SF..ratio..for..the..schools..she..is..considering?..What..is..the..largest.. SF..ratio..for..the. . schoo
ls..she..is..considering?
Graduation..Rate:..What..is..the..average..graduation..rate..for..the..schools..she..is..considering?..What
..is. . the..lowest..graduation..rate..for..the..schools..she..is..considering?..What..is..the..highest..graduati
on..rate. . for..the..schools..she..is..considering?
Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
10) Refer..to..the..variables..collected..by..the..high..school..senior..looking..at..colleges...Identify..
a. . question..that..we..might..ask..about..relationships..between..any..two..(or..more)..of..these..vari
ables.. . Answer:...... Answers..will..vary...Some..possible..answers..include:
Which..type..of..schools..tend..to..cost..more,..the..private..or..the..public..schools?
Which..type..of..schools..tend..to..have..the..higher..graduation..rate,..the..private..or..public..schools?. .
Which..type..of..schools..tend..to..have..the..lower..student-
faculty..ratio,..the..private..or..public..schools?. . Which..state..is..the..most..expensive?
Can..student-
faculty..ratio..be..used..to..predict..tuition?. . Can..gradua
tion..rate..be..used..to..predict..tuition?
Can..enrollment..be..used..to..predict..tuition
?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
Use..the..following..to..answer..the..questions..below:
A..realtor's..website..provides..information..on..area..homes..that..are..for..sale...Identify..each..of
. . the..variables..as..either..categorical..or..quantitative.
11) List..Price:..amount,..in..thousands..of..dollars,..for..which..the..house..is..being..sold
. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
12) School..District:..the..school..district..in..which..the..home..is..located.
. Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
13) Size:..in..square..feet. .
Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
3
, 14) Style:..the..style..of..home..(ranch,..Cape..Cod,..Victorian,..etc.).
. Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
Use..the..following..to..answer..the..questions..below:
A..realtor's..website..provides..information..on..area..homes..that..are..for..sale,..including..the. . f
ollowing..variables:..List..Price,..School..District,..Size,..Style.
15) What..are..the..cases..in..the..realtor's..dataset?
A) Individual..houses
B) List..Price
C) Size
D) Style. . Ans
wer:...... A
Diff:..2 Type:..BI Var:..1
L.O.:...... 1.1.1
16) Refer..to..the..variables..provided..by..the..realtor...Identify..a..question..we..might..ask..about..any..
one. . of..these..individual..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include:
List..Price:..What..is..the..average..list..price..of..homes..for..sale..in..the..area?..What..is..the..least. .
expensive..home..for..sale..in..the..area?..What..is..the..most..expensive..home..for..sale..in..the..area
?. . School..District:..In..which..school..district..are..most..of..the..homes..located?
Size:..What..is..the..average..size..of..homes..for..sales..in..the..area?..What..is..the..largest..home..for..sal
e..in. . the..area?..What..is..the..smallest..home..for..sale..in..the..area?
Style:..What..style..of..home..is..most..popular..(or..for..sale..the..most)..in..this..ar
ea?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
17) Refer..to..the..variables..provided..by..the..realtor...Identify..a..question..that..we..might..ask..ab
out. . relationships..between..any..two..(or..more)..of..these..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include
Does..the..price..of..the..home..depend..on..the..school..district..(i.e.,..does..one..tend..to..cost..more..than
. . others?)?
Which..style..of..home..tends..to..cost..the..most?
Do..larger..homes..tend..to..cost..more..than..smaller..home
s?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
Use..the..following..to..answer..the..questions..below:
The..USStates..dataset,..used..throughout..the..textbook,..contains..information..on..the..50..U.S.
. . states...A..small..segment..from..the..dataset..is..displayed..in..the..following..table.
4
Statistics Unlocking the Power of Data, 3rd Edition Robin H. Lock, Patti Frazer Lock, Kari Lock
Morgan, Eric F. Lock, Dennis F. Lock
Chapter 1-10
Chapter..1 Collecting..Data
1.1 The..Structure..of..Data
Use..the..following..to..answer..the..questions..below:
A..high..school..senior..is..collecting..data..on..the..colleges..in..which..she..is..interested...Identify..t
he. . variables..as..either..categorical..or..quantitative.
1) Type..of..college:..Private..or..Public..colle
ge. . Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
1
,2) Tuition:..in..thousands..of..doll
ars. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
3) State:..the..state..in..which..the..college..is..loca
ted. . Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
4) Zip..Code:..the..zip..code..of..the..part..of..the..country..in..which..the..college..is..lo
cated. . Answer:...... Categorical
Diff:..2 Type:..SA Var:..1
L.O.:...... 1.1.2
5) Enrollment:..the..number..of..students..enrolled..at..the..coll
ege. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
6) Student-
Faculty..Ratio:..the..number..of..students..divided..by..the..number..of..faculty. . Answ
er:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
7) Graduation..Rate:..as..a..percenta
ge. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
Use..the..following..to..answer..the..questions..below:
A..high..school..senior..is..collecting..data..on..the..colleges..in..which..she..is..interested,..includi
ng. . the..following..variables:..Type..of..college,..Tuition,..State,..Enrollment,..Student-
Faculty..Ratio,. . Graduation..Rate
8) What..are..the..cases..in..the..high..school..senior's..dataset?
A) Colleges
B) Tuition
C) Graduation..Rate
D) State..An
swer:...... A
Diff:..2 Type:..BI Var:..1
L.O.:...... 1.1.1
9) Refer..to..the..variables..collected..by..the..high..school..senior..looking..at..colleges...Identif
y..a. . question..we..might..ask..about..any..one..of..these..individual..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include:
2
,Type..of..college:..Is..she..considering..more..private..schools..than..public..schools?
Tuition:..What..is..the..average..tuition..of..the..colleges..she..is..considering?..What..is..the.."cheapest".
. school..she..is..considering?..What..is..the..most..expensive..school..she..is..considering?
State:..Is..there..a..state..that..she..seems..to..prefer?
Enrollment:..What..is..the..average..size..of..the..colleges..she..is..considering?..What..is..the..largest. . c
ollege..she..is..considering?..What..is..the..largest..college..she..is..considering?
Student-
Faculty..Ratio:..What..is..the..average..SF..ratio..for..the..schools..she..is..considering?..What..is. . the..s
mallest..SF..ratio..for..the..schools..she..is..considering?..What..is..the..largest.. SF..ratio..for..the. . schoo
ls..she..is..considering?
Graduation..Rate:..What..is..the..average..graduation..rate..for..the..schools..she..is..considering?..What
..is. . the..lowest..graduation..rate..for..the..schools..she..is..considering?..What..is..the..highest..graduati
on..rate. . for..the..schools..she..is..considering?
Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
10) Refer..to..the..variables..collected..by..the..high..school..senior..looking..at..colleges...Identify..
a. . question..that..we..might..ask..about..relationships..between..any..two..(or..more)..of..these..vari
ables.. . Answer:...... Answers..will..vary...Some..possible..answers..include:
Which..type..of..schools..tend..to..cost..more,..the..private..or..the..public..schools?
Which..type..of..schools..tend..to..have..the..higher..graduation..rate,..the..private..or..public..schools?. .
Which..type..of..schools..tend..to..have..the..lower..student-
faculty..ratio,..the..private..or..public..schools?. . Which..state..is..the..most..expensive?
Can..student-
faculty..ratio..be..used..to..predict..tuition?. . Can..gradua
tion..rate..be..used..to..predict..tuition?
Can..enrollment..be..used..to..predict..tuition
?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
Use..the..following..to..answer..the..questions..below:
A..realtor's..website..provides..information..on..area..homes..that..are..for..sale...Identify..each..of
. . the..variables..as..either..categorical..or..quantitative.
11) List..Price:..amount,..in..thousands..of..dollars,..for..which..the..house..is..being..sold
. . Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
12) School..District:..the..school..district..in..which..the..home..is..located.
. Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
13) Size:..in..square..feet. .
Answer:...... Quantitative
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
3
, 14) Style:..the..style..of..home..(ranch,..Cape..Cod,..Victorian,..etc.).
. Answer:...... Categorical
Diff:..1 Type:..SA Var:..1
L.O.:...... 1.1.2
Use..the..following..to..answer..the..questions..below:
A..realtor's..website..provides..information..on..area..homes..that..are..for..sale,..including..the. . f
ollowing..variables:..List..Price,..School..District,..Size,..Style.
15) What..are..the..cases..in..the..realtor's..dataset?
A) Individual..houses
B) List..Price
C) Size
D) Style. . Ans
wer:...... A
Diff:..2 Type:..BI Var:..1
L.O.:...... 1.1.1
16) Refer..to..the..variables..provided..by..the..realtor...Identify..a..question..we..might..ask..about..any..
one. . of..these..individual..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include:
List..Price:..What..is..the..average..list..price..of..homes..for..sale..in..the..area?..What..is..the..least. .
expensive..home..for..sale..in..the..area?..What..is..the..most..expensive..home..for..sale..in..the..area
?. . School..District:..In..which..school..district..are..most..of..the..homes..located?
Size:..What..is..the..average..size..of..homes..for..sales..in..the..area?..What..is..the..largest..home..for..sal
e..in. . the..area?..What..is..the..smallest..home..for..sale..in..the..area?
Style:..What..style..of..home..is..most..popular..(or..for..sale..the..most)..in..this..ar
ea?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
17) Refer..to..the..variables..provided..by..the..realtor...Identify..a..question..that..we..might..ask..ab
out. . relationships..between..any..two..(or..more)..of..these..variables.
Answer:...... Answers..will..vary...Some..possible..answers..include
Does..the..price..of..the..home..depend..on..the..school..district..(i.e.,..does..one..tend..to..cost..more..than
. . others?)?
Which..style..of..home..tends..to..cost..the..most?
Do..larger..homes..tend..to..cost..more..than..smaller..home
s?. . Diff:..2 Type:..ES Var:..1
L.O.:...... 1.1.4;1.1.5
Use..the..following..to..answer..the..questions..below:
The..USStates..dataset,..used..throughout..the..textbook,..contains..information..on..the..50..U.S.
. . states...A..small..segment..from..the..dataset..is..displayed..in..the..following..table.
4
