Linearity
Visualizing the linear model aids in having a full understanding of the results as well as presenting them to others.
A company has collected the data of their website's users and is interested in whether the amount of time spent searching for items on the website, TimeSearching
, impacts the amount of money spent purchasing items, AmountSpent
. Run a correlation, create the linear regression model, predict the amount that will be spent given 27 minutes of time searching on the site, and create a scatter plot indicating the relevant information.
The SiteSales
dataset and ggplot2
package have been loaded for you.
Cet exercice fait partie du cours
A/B Testing in R
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Run a Pearson correlation
cor.test(___, data = ___, method = ___)