Answer :
Final answer:
The test statistic measures the difference between observed and expected values in a statistical test. It is not on the AP exam formula sheet, but the formulas for calculating it are provided.
Explanation:
The test statistic measures the difference between the observed values and the expected values in a statistical test. It is used to determine the significance of the results and whether they support the alternative hypothesis. The test statistic is not directly provided on the AP exam formula sheet, but the formulas and procedures for calculating the test statistic are included.
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