In R, the t-test is a statistical method used to compare the means of two groups and determine if they are significantly different from each other. The t-test can be easily conducted in R using the t.test() function, which takes in the two groups of data as input and returns the t-statistic, degrees of freedom, and p-value. This allows researchers to assess the significance of the difference between the means of the two groups and determine if the difference is statistically significant. The t-test is commonly used in R for hypothesis testing and making inferences about population means based on sample data.

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