Tag Archives: clower

Confidence Interval calculation in TI Nspire and Excel

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.