Find answers to the top 10 questions parents ask about TI graphing calculators.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more.
Get ready for back to school with T³™ Webinars to enhance your teaching and TI technology skills.
We are here to help with distance learning resources for schools and districts.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
Students calculate confidence intervals to estimate the true population mean when the standard deviation of the population is not known.
Students will be introduced to the assumptions needed to use the t distribution. They will investigate, by graphing, the relationship between a normal distribution and the t distribution.
Students are presented with a problem to calculate a confidence interval. They will use a Calculator page to compute the interval, finding the t-value and the error.
As an extension, students are given a data set and asked to construct three confidence intervals. They will be able to use either method from the activity.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.