Some citizens complained to city council members that there should be equal protection under the law…
Some citizens complained to city council members that there should be equal protection under the law against the occurrence of crimes. The citizens argued that this equal protection should be interpreted as indication that high-crime areas should have more police protection than low- crime areas. Therefore, police patrols and other methods for preventing crime (such as street lighting or cleaning up abandoned areas and building) should be used proportionately to crime occurrence. In a fashion similar to Problem 10, the city has been broken down into 20 geographic areas, each containing 5,000 residences. The 1,000 sampled from each area showed the following incidence crime during the past month:
AREA
NUMBER OF CRIMES
SAMPLE SIZE
CRIME RATE
1
14
1,000
0.014
2
3
1,000
0.003
3
19
1,000
0.019
4
18
1,000
0.018
5
14
1,000
0.014
6
28
1,000
0.028
7
10
1,000
0.010
8
18
1,000
0.018
9
12
1,000
0.012
10
3
1,000
0.003
11
20
1,000
0.020
12
15
1,000
0.015
13
12
1,000
0.012
14
14
1,000
0.014
15
10
1,000
0.010
16
30
1,000
0.030
17
4
1,000
0.004
18
20
1,000
0.020
19
6
1,000
0.006
20
6
1,000
0.030
300
1,000
Suggest a reallocation of crime protection effort, if indicated, based on a p chart analysis. To be reasonably certain in your recommendation, select a 95 percent confidence level (that is, Z= 1.96).
