In 2004, unemployment rates in the 50 U.S. states were reported as follows. These data are also provided in the file XR02058.
|
|
Percent
|
|
Percent
|
|
Percent
|
|
AL
|
5.8
|
LA
|
6.0
|
OH
|
6.3
|
|
AK
|
7.5
|
ME
|
4.7
|
OK
|
4.9
|
|
AZ
|
5.1
|
MD
|
4.2
|
OR
|
7.6
|
|
AR
|
5.9
|
MA
|
5.1
|
PA
|
5.6
|
|
CA
|
6.2
|
MI
|
7.0
|
RI
|
5.4
|
|
CO
|
5.4
|
MN
|
4.8
|
SC
|
6.9
|
|
CT
|
4.9
|
MS
|
6.2
|
SD
|
3.7
|
|
DE
|
3.9
|
MO
|
5.7
|
TN
|
5.1
|
|
FL
|
4.6
|
MT
|
4.9
|
TX
|
6.0
|
|
GA
|
4.7
|
NE
|
3.8
|
UT
|
5.3
|
|
HI
|
3.4
|
NV
|
4.2
|
VT
|
3.7
|
|
ID
|
5.3
|
NH
|
3.7
|
VA
|
3.9
|
|
IL
|
6.1
|
NJ
|
4.8
|
WA
|
6.2
|
|
IN
|
5.3
|
NM
|
5.6
|
WV
|
5.3
|
|
IA
|
4.6
|
NY
|
5.8
|
WI
|
5.0
|
|
KS
|
5.5
|
NC
|
5.4
|
WY
|
3.8
|
|
KY
|
5.2
|
ND
|
3.4
|
|
|
a. Construct a stem-and-leaf display for these data.
b. Construct a frequency distribution for these data.
c. Determine the interval width and the class mark for each of the classes in your frequency distribution.
d. Based on the frequency distribution obtained in part (b), draw a histogram and a relative frequency polygon to describe the data.