A large city installed LED streetlights,in part,to help reduce crime in particular areas.The city collected the number of property crimes along nine randomly selected streets in the month before and after the LED light installation,and claims that crime has been reduced.The crime data is shown in the table. 
a.Specify the competing hypotheses to test the city's claim.
b.Calculate the value of the relevant test statistic and find the critical value at the 5% significance level.
c.Does the evidence support the city's claim at the 5% significance level?
Definitions:
Bowers V. Hardwick
A controversial Supreme Court case in 1986 that upheld the constitutionality of a Georgia sodomy law, later overturned by Lawrence v. Texas in 2003.
Homosexual Acts
Activities of a sexual nature between individuals of the same sex.
Vietnam Conflict
A prolonged war (1955-1975) between North Vietnam, supported by its communist allies, and South Vietnam, supported by the United States.
Federal Government
The Federal Government is the national government of a federal country, which has specific powers delegated to it by a constitution, distinguishing it from the governmental entities of individual states or provinces.
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