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

question 75

Essay

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)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?

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Definitions:

Overexcitement

A state of being excessively stimulated or enthusiastic, often leading to erratic behavior or emotional overwhelm.

DSM-IV-TR

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; a guide published by the American Psychiatric Association for diagnosing mental disorders.

Diagnose

The process of identifying a disease or condition from its symptoms through systematic analysis and investigation.

Levels

Different stages or degrees of magnitude in a particular hierarchy or system.