Question
A medical researcher says that less than 25% of U.S. adults are smokers. In a simple random sample of 400 U.S. adults, 20% were smokers.
A medical researcher says that less than 25% of U.S. adults are smokers. In a simple random sample of 400 U.S. adults, 20% were smokers. Can we conclude that less than 25% of U.S. adults are smokers? Use 1% to decide. Round to the fourth as needed What's the minimum population size required? How many successes were there? H0H0:Select an answer x p p Select an answer = < > HAHA:Select an answer x p p Select an answer = < > Test Statistic: P-value: Did something significant happen? Select an answer Significance Happened Nothing Significant Happened Select the Decision Rule: Select an answer Reject the Null Accept the Null Fail to Reject the Null There Select an answer is is not enough evidence to conclude Select an answer that less than 25% of U.S. adults are smokers that 25% of U.S. adults are smokers
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