In comparing the relative odds of an outcome, odds ratio is often used and can be easily calculated after constructing the frequency table as in below where the row-wise values represent the treatment and column-wise as the outcome.
Even though there is no built-in function for the calculation for the confidence interval of odds ratio in TI Nspire, doing it in the Calculator page is pretty straight forward.
In TI Nspire, calculation of Student’s t confidence interval can be achieved using data or statistics input. The menu can be accessed from “Statistics > Confidence Interval > t Interval”.
In Excel, the same function does not have a separate menu item, but instead is included in the Descriptive Statistics dialog with a check box of “Confidence Level for mean”, and a percentage input box next to it. Unlike in Nspire, lower and upper are not included in the output.