Following is a time series graph for monthly closing price of 3M Dental Products
stock (beginning June 2005). 
a. Are the closing prices for shares of 3M Dental Products from June 2005 through
August 2007 stationary? Explain.
b. Would a histogram provide a good summary of these stock prices? Explain.
Definitions:
Task Performance
Refers to the effectiveness and efficiency with which an individual completes a given task or series of tasks.
Sympathetic Nervous System
A part of the autonomic nervous system that prepares the body for action and stress responses, often referred to as the fight-or-flight response.
Fight-Or-Flight
A physiological reaction to perceived harmful events, attacks, or threats to survival, preparing the body to either confront or flee from the situation.
Mediates
Acts as a negotiator or intermediary between parties to help resolve a dispute or bring about an agreement.
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