How To: Test a population mean with a TI-83 graphic calculator

Test a population mean with a TI-83 graphic calculator

Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to test a population mean with a TI-83 graphic calculator.

Hypothesis test, single population mean, sigma unknown.

Please note, this example is NOT in your TI booklet

The CDE academic program gives a placement test with a mean score of 8. The Comp R Us Corp. has designed a preparation course, which the company claims will increase test scores. A random sample of 128 new students yielded a mean of 8.7 with a standard deviation of 2.3. Comp R Us says the data is normally distributed. At the 95% level of significance, test the company's claim that their course increases placement exams scores.

Test a population mean with a TI-83 graphic calculator

Test a population mean with a TI-83 graphic calculator Click through to watch this video on ccbcmd.edu

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