Data Analysis

Question

A researcher is investigating differences in homicide rates across northern and southern cities. She collects data and finds that the mean homicide rate in four large southern cities is 95.45, the mean homicide rate for four larger northern cities was 81.09, what would this researchers null and alternative hypothesis look like? Write your answers down in words 

Answer 1

Null hypothesis: The mean homicide rate in southern cities is equal to the mean homicide rate in northern cities.

Alternative hypothesis: The mean homicide rate in southern cities is different from the mean homicide rate in northern cities.