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.
Get hundreds of video lessons that show how to graph parent functions and transformations.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
Students find z-scores and critical values to test claims about proportions.
In Problem 1, students begin hypothesis testing. They write null and alternative hypotheses for a two-tailed test. They test the claim that 10% of Americans are left-handed.
Students then calculate the critical values. They will determine that because the normal distribution is symmetric, they can find the left critical value using the Inverse Normal (invNorm) command. and use its opposite for the right critical value.
Students discuss whether to reject or fail to reject the null hypothesis based on the test statistic and the critical values.
© Copyright 1995-2022 Texas Instruments Incorporated. All rights reserved.