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1-propZtest - Using Your TI-83/84 Calculator for Hypothesis...

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Using Your TI-83/84 Calculator for Hypothesis Testing: The 1-Proportion z Test Dr. Laura Schultz The 1-proportion z test is used to test hypotheses regarding population proportions. This handout will take you through one of the examples we will be considering during class. Consult your lecture notes for more details regarding the non-calculator-related aspects of this specific hypothesis test. Statistics students at the Akademia Podlaka conducted an experiment to test the hypothesis that the one-Euro coin is biased (i.e., not equally likely to land heads up or tails up). Belgian-minted one-Euro coins were spun on a smooth surface, and 140 out of 250 coins landed heads up. Does this result support the claim that one-Euro coins are biased? 1. Before you can proceed with entering the data into your calculator, you will need to symbolize the null and alternative hypotheses. For this example, let’s define p as the proportion of 1-Euro coins that land heads up. Then, we can symbolize our null hypothesis ( H 0 ) as p = 0.5 and our alternative hypothesis ( H 1 ) as p 0.5. 2. Press S and use > to scroll right to the TESTS menu. Then, scroll down to 5:1-PropZTest and press e .
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