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Some citizens complained to Victoria city council members

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1. Some citizens complained to Victoria 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 building) should be used proportionately to crime occurrence.;The city is divided into 20 geographical areas, each containing 5000 residences. The 1000 sampled;from each area showed the following incidences of crime during the past month;Area;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;Crimes;14;3;19;18;14;28;10;18;12;3;20;15;12;14;10;30;4;20;6;30;Sample;Size;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;1000;Suggest a reallocation of crime protection effort based on a p-chart analysis. Use a 95% confidence level;(i.e. z = 1.96);2.;The following table contains the measurement of the key length dimension from a fuel injector. These;sample of size five were taken at one hour interval.;Sample number;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15;16;17;18;19;20;1;.486;.499;.496;.495;.472;.473;.495;.525;.497;.495;.495;.483;.521;.487;.493;.473;.477;.515;.511;.509;2;.499;.506;.500;.506;.502;.495;.512;.501;.501;.505;.482;.459;.512;.521;.516;.506;.485;.493;.536;.490;3;.493;.516;.515;.483;.526;.507;.490;.498;.517;.516;.468;.526;.493;.507;.499;.479;.513;.493;.486;.470;4;.511;.494;.488;.487;.469;.493;.471;.474;.506;.511;.492;.506;.525;.501;.511;.480;.484;.485;.497;.504;5;.481;.529;.521;.489;.481;.506;.504;.485;.516;.497;.492;.522;.510;.500;.513;.523;.496;.475;.491;.512;Construct a three sigma X-bar chart and R chart for the length of the fuel. What can you say about this;process?

 

Paper#18073 | Written in 18-Jul-2015

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