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Spearman correlation analysis

A Spearman correlation assesses the strength and direction of a monotonic relationship.

A company is interested in assessing the relationship between the time users spend on their website and the amount the users spent. Perform the Spearman correlation test ignoring groups and run the power analysis of the test to determine if there is a significant monotonic relationship in the rankings of these variables and whether the results found are reliable.

The pwr package and webdata dataset have been loaded for you.

This exercise is part of the course

A/B Testing in R

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Hands-on interactive exercise

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

# Run the Spearman correlation
___ <- cor.test(___, 
         data = ___, 
         method = ___, exact = ___)
Edit and Run Code