Function ttest_1samp_py 

pub fn ttest_1samp_py(
    py: Python<'_>,
    data: &Bound<'_, PyArray1<f64>>,
    popmean: f64,
    alternative: &str,
) -> PyResult<Py<PyAny>>

One-sample t-test

Test whether the mean of a sample is different from a given value.

Parameters:

• data: Input data
• popmean: Population mean for null hypothesis
• alternative: “two-sided”, “less”, or “greater”