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9. Hypothesis Testing for One Sample
9. Hypothesis Testing for One Sample / Steps in Hypothesis Testing / Problem 9
Problem 9

A researcher suspects that coin flips from a vending machine are not fair. In 2020 flips, there are only 55 heads. Use a two-tailed binomial test with α=0.05\alpha=0.05. Let 𝑛=20𝑛=20, p=0.5p=0.5, and use binomial critical values. What are the critical values for this test?