A large city installed LED street lights,in part,to help reduce crime in particular areas.The city collected the number of property crimes along 9 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 next.
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?

Question

A large city installed LED street lights,in part,to help reduce crime in particular areas.The city collected the number of property crimes along 9 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 next.  
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?

Quizplus · Accepted Answer

The Answer of A large city installed LED street lights,in part,to help reduce crime in particular areas.The city collected the number of property crimes along 9 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 next.  
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?

A Large City Installed LED Street Lights,in Part,to Help Reduce