During the 2024–2025 flu season, studies estimated that the…
During the 2024–2025 flu season, studies estimated that the flu vaccine effectiveness was approximately 45%. A group of students from Indiana University wants to investigate whether the vaccine effectiveness in Bloomington, Indiana differs from this proportion. They randomly sample 200 vaccinated individuals in Bloomington and find that 70 did not contract the flu during the season. a. Calculate the value of the test statistic. Round your answer to 2 decimal places. [a] b. Determine the p-value for the test. Round your answer to 3 decimal places. [b] c. Would you reject the null hypothesis at the 0.05 (
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