Math 161 Sec F07N01 Test 2
Oct 18 2007
(1) [2 points] The unemployment rate is the percentageof the labour force unemployed. A decrease
in the unemployment rate from one month to the next means that
(a) a greater number of people have found work.
(b) u g
Ncfw_ath 161  Practice Test 2
SerpDec
2OOT
choice:circle the best answcrto cach question:
Question 1: X,tlultiplc
(1)[2 points] Thc followirrgtable gives data for population and nurnber of ftr,trilnrotot'vehiclc
ru,ccirkrnts Canada's four largcst provin
Math 161  Practice Test 1
SepDec2OOT
Question 1: Multiple choice: circle the best answer to each question:
(1)[2 points] A censusattempts to include data from
(u) u simple random sample.
(b) a stratified random sample.
(c) all adults of voting age in a
=
(r Pcn; L
)
L
=+
P ( 8 ) =+
)
a.^ol s )
:. Pcn
P ( E ) C B ) bA 7^Jpe^&oage
P
(i)(
+)
P( +?,st ptoge,.v.,.,cuKes
Sf".tt) = +
(.)
P ( ;r. st p ta.pc,,isses
sL,o*)=
a
t
a
\ t
? ( geca'^ot p.o^2e,. wtaVes
shot ) =
a
a a
=
+
? ( s c o . e lg t o  3
Math 161 Sec F07N01 & F07N02  Practice Final Exam
Dec 10 2OOT
Question 1: Multiple choice: circle the best answerto each question:
(1)[2 points] A reader of the Indianapolis Star wrote in to expressdoubt that a poll based on
a random sample of 600 voters
Math 161 Sec F07N02 Test 1
Sep 20 2OO7
Question 1 Multiple choice: circle the best answer to each question:
Use the following for (1), (2), and (3): A study is done in Rathtrevor Beach Park (Parksville,
gatti,. A
BC) to estimate the proportion of park ce
Math 161 Sec F07N01 & F07N02  Final Exam
Dec 10 2OOT
Question 1
Multiple choice: circle the best answel to each question:
(1)t2 points] A quality control manager designsa procedure to monitor lead levels in toys manufactured in factories abroad and impor
Math 161 Sec F07N02  Test 4
Nov 22 2OO7
Question 1
A telephone survey of 1040 randomly selected adults found that 313 of them
(") [Z points]
the
,iropp.i using the internet at least once per year. Give a 99% confidence interval for
Round to two
proportio
Ps6
P =
a

v
6q+l
a
tzLs
Lriir g"'cfw_ rJalue
t*
A: ypnxiw*<
f
,'.lnn'/v c<) $;.tg^n
n

.
P
1
.
=
1\7u =
+
'i,"t .nvJ
z,gf
+
"r(o.t ior," a1 vv'r<oLicel w1^,
cr\ce ( o  s r , . i f i "
?
lrf1.et ^.,4
a'Lfopfe.( ar o,LiSvniSSe.l
()
f
+ tY
o.61+t Q