The Essentials of Statistics: A Tool for Social Research
The Essentials of Statistics: A Tool for Social Research
4th Edition
ISBN: 9781305802698
Author: Joseph F. Healey
Publisher: Cengage Learning US
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Chapter 4, Problem 4.11P

Per capita expenditures for public transportation for 20 cities are reported here for 2000 and 2010. Compute the mean and standard deviation for each year, and describe the differences in expenditures for the ten-year period.

City 2000 2010
A 52 197
B 87 124
C 101 131
D 52 197
E 115 119
F 88 87
G 100 150
H 101 209
I 95 110
J 78 140
K 103 178
L 107 94
M 85 125
N 117 200
O 167 225
P 180 210
Q 120 201
R 78 141
S 55 248
T 92 131
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