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Checking for omitted variables

With the survey data joined, you can test your colleague's idea that employee engagement, or specifically, employee disengagment, changed at the same time that the accident rate changed. Use a bar chart to compare the distributions, just as you have in previous chapters, and then use a statistical test to check if the difference you can see is significant.

This exercise is part of the course

HR Analytics: Exploring Employee Data in R

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Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Visualize the difference in % disengaged by year in Southfield
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