October 25th, 2020 
https://www.youtube.com/watch?v=7Kc1reo8NU0
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2733706/
Thread 1: Describe the relationship between attribution theory and statistical quality control as they relate to how a leader may approach a quality problem.
Thread 2: What is the difference between common cause variation and special cause variation, and why should a leader care to know which type of variation is the source of a quality problem?
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