You pull out your Ti-Nspire CX and open Statistics Made Easy (www.Tinspireapps.com) and do the following:

As you can see, not only can you perform this Z-Test for Means in seconds but you can also alter sample mean , the sample size or the standard deviation to view how they affect the z-score and therefore the p-value. This is true power in your hands.

Not only does the app perform Statistical Test but it contains 2 years of College Statistics such as Regressions, Confidence Intervals, Probabilities, 1 and 2 variable Analysis, Non-Parametric Tests, Markov Chains, Moment-Generating Functions, Decision Analysis and more .. You will find the app useful for your entire High School and College career.

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