Suppose a researcher was interested in determining the effect of an experimental drug on the lifespan of laboratory rats.Shown below is a summary of the lifespans,in months,for laboratory animals administered the drug.Compute the median number of months the animals survived. 
Definitions:
Cause-and-Effect Diagram
A visual tool for identifying and organizing the potential causes of a problem in order to identify its root causes, also known as a fishbone or Ishikawa diagram.
Service Quality
The degree to which a service meets the customer's expectations, often evaluated based on factors like responsiveness, reliability, and professionalism.
Cause and Effect Diagram
Also known as a fishbone diagram, it is a tool used to systematically list and analyze the potential causes of a specific problem or effect.
Pareto Chart
A bar graph that represents the frequency or impact of problems or causes in a process, helping to identify the most significant factors.
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