1. The practice this week is about whether the relationship between two variables is significant.
Sydney is an HR rep who sits in on the promotion decisions for the company. She is concerned because it seems that people are getting salary hikes because their managers like them, not because they deserve it. She wants to know if there is a significant relationship between PercentSalaryHike and Years with Current Manager.
What is the correlation between PercentSalaryHike and Years with Current Manager (round to 2 decimal points ex. 1.22)?
2. Is the correlation between PercentSalaryHike and Years with Current Manager significant?
a. Yes, the p-value <.001
b. Yes, the p-value <.01
c. Yes, the p-value <.05
d. No
3. What can Sydney conclude from the data?
a. There is not evidence that the number of years someone is with their manager does not predict their salary hike.
b. Managers do not give salary hikes to employees they like more
c. Managers do give salary hikes to employees they like more
d. There is evidence that the number of years someone is with their manager does not predict their salary hike.
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