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  3. Case Study: Exploratory Data Analysis in R

Exercise

Finding the p-value of a linear regression

Not all positive or negative slopes are necessarily real. A p-value is a way of assessing whether a trend could be due to chance. Generally, data scientists set a threshold by declaring that, for example, p-values below .05 are significant.

US_fit is still available in your workspace. In this linear model, what is the p-value of the relationship between year and percent_yes?

Instructions

50 XP

Possible answers