a. Determine P , Sp, UCL and LCL for a p chart of 95 percent confidence (at Z= 1.96). (Round your answers to 4 decimal places.) Sp UCL LCL
a. Determine P , Sp, UCL and LCL for a p chart of 95 percent confidence (at Z= 1.96). (Round your answers to 4 decimal places.) Sp UCL LCL
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter11: Simulation Models
Section: Chapter Questions
Problem 54P
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Transcribed Image Text:a. Determine P , Sp, UCL and LCL for a p chart of 95 percent confidence (at Z= 1.96). (Round your answers to 4 decimal places.)
P
Sp
UCL
LCL
Transcribed Image Text: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 indicating 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 buildings) should be used proportionately to crime occurrence.
The city has been broken down into 20 geographic areas, each containing 5,000 residences. The police recognize that not all
crimes and offenses are reported: people do not want to become involved, consider the offenses too small to report, are too
embarrassed to make a police report, or do not take the time, among other reasons. Every month, because of this, the police are
contacting by phone a random sample of 1,060 of the 5,000 residences for data on crime. (Respondents are guaranteed anonymity.)
The 1,060 sampled from each area showed the following incidence of crime during the past month:
NUMBER OF
CRIME RATE
0.015
AREA
CRIMES
SAMPLE SIZE
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1,060
1
16
2
0.005
0.020
0.019
0.015
0.030
0.011
0.020
0.013
0.006
0.023
0.016
0.013
3
21
4
20
16
5
6
7
12
8
9
21
14
10
11
24
12
17
14
13
14
16
12
36
0.015
0.011
0.034
0.007
0.023
0.008
16
17
7
18
19
24
9
20
36
0.034
358
O LO N O
* n O C 0 a
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