Given the following information, calculate the gross profit ratio. 
Definitions:
Crime Level
Refers to the amount of criminal activity within a specified area and time period.
Null Hypothesis
A default statement that there is no effect or no difference, used as a starting point for statistical testing.
Main Effects
The individual impacts of multiple independent variables on a dependent variable in an experimental setting, rephrased from main effect.
Factorial Design
An experimental strategy where two or more factors are varied, allowing researchers to study their individual effects and interactions.
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