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”.
t-confidenceinterval1

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.
t-confidenceinterval3

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s