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A small town is divided into 4 districts. Below is data for the number of calls...

A small town is divided into 4 districts. Below is data for the number of calls each districts police department received during a week period. Do the data provide evidence that some of the towns police departments are busier than others? Test the relevant hypotheses using a= 0.05

District 1 District 2 District 3 District 4
Number of calls 28 16 31 38
Math   Statistics-And-Probability   
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