The state and local police departments are trying to analyze crime rates so they can shift their patrols from decreasing-rate areas to areas where rates are increasing. The city and county have been geographically segmented into areas containing 5,650 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 1,170 of the 5,650 residences for data on crime. (Respondents are guaranteed anonymity.) Here are the data collected for the past 12 months for one area: CRIME MONTH SAMPLE SIZE CRIME RATE INCIDENCE 1,170 January February March 9 11 1,170 1,170 1,170 1,170 1,170 April Мay 9 June 11 July August September October November December 1,170 1,170 1,170 1,170 12 10 13 13 1,170 1,170 10 a. Determine the P, Sp UCL and LCL for a p-chart of 95 percent confidence (at Z= 1.96). (Round your answers to 5 decimal places.) Sp UCL LCL

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Author:WINSTON, Wayne L.
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Problem 13-11 (Algo)
The state and local police departments are trying to analyze crime rates so they can shift their patrols from decreasing-rate areas to
areas where rates are increasing. The city and county have been geographically segmented into areas containing 5,650 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 1,170 of the 5,650 residences for data on crime. (Respondents are
guaranteed anonymity.) Here are the data collected for the past 12 months for one area:
CRIME
MONTH
SAMPLE SIZE
CRIME RATE
INCIDENCE
January
February
March
9
1,170
1,170
1,170
1,170
1,170
1,170
1,170
1,170
1,170
1,170
1,170
11
April
May
9
9
June
11
July
August
September
October
9
12
10
13
November
13
December
10
1,170
a. Determine the P, Sp UCL and LCL for a p-chart of 95 percent confidence (at Z= 1.96). (Round your answers to 5 decimal places.)
P
Sp
UCL
LCL
O o O O o o o 0 o o O 0
Transcribed Image Text:Problem 13-11 (Algo) The state and local police departments are trying to analyze crime rates so they can shift their patrols from decreasing-rate areas to areas where rates are increasing. The city and county have been geographically segmented into areas containing 5,650 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 1,170 of the 5,650 residences for data on crime. (Respondents are guaranteed anonymity.) Here are the data collected for the past 12 months for one area: CRIME MONTH SAMPLE SIZE CRIME RATE INCIDENCE January February March 9 1,170 1,170 1,170 1,170 1,170 1,170 1,170 1,170 1,170 1,170 1,170 11 April May 9 9 June 11 July August September October 9 12 10 13 November 13 December 10 1,170 a. Determine the P, Sp UCL and LCL for a p-chart of 95 percent confidence (at Z= 1.96). (Round your answers to 5 decimal places.) P Sp UCL LCL O o O O o o o 0 o o O 0
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