Answer Posted / Sunny Malik

{"T-Tests": "In R, t-test is a statistical test used to determine if there is a significant difference between the means of two samples. It can be performed using functions like t.test(x, y), where x and y are the two sample sets.", "Two Sample T-Test": "The two sample t-test (t.test(x, y)) compares the means of two independent groups to determine if there is a significant difference between them.", "Paired T-Test": "The paired t-test (t.test(x, y, paired=TRUE)) compares the means of two related groups, such as before and after measurements on the same subjects.", "Welch's T-Test": "Welch's t-test (t.test(x, y, var.equal=FALSE)) is used when the variances of the two samples are not assumed to be equal."}

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