```
# Experimenting with t.test function options.
library(testthat)
TOLERANCE = 0.0001
context("t.test for evaluating equivalence of samples")
t_test_unpooled <- function(x1_mean, x1_se, x2_mean, x2_se) {
return ((x1_mean - x2_mean) / sqrt((x1_se ^ 2) + (x2_se ^ 2)))
}
test_that("using unpooled variance with no significant difference", {
x1_mean = 486.4888
x1_se = 12.563
x2_mean = 497
x2_se = -3.4
expected_t = -0.8077
actual_t = t_test_unpooled(x1_mean, x1_se, x2_mean, x2_se)
expect_equal(actual_t, expected_t, tolerance = TOLERANCE)
})
test_that("using unpooled variance with significant difference", {
x1_mean = 605.2804
x1_se = 11.4252
x2_mean = 496
x2_se = -3.2
expected_t = 9.2104
actual_t = t_test_unpooled(x1_mean, x1_se, x2_mean, x2_se)
expect_equal(actual_t, expected_t, tolerance = TOLERANCE)
})
```

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.