the null is true is only 0.0138, so we reject H0. This proves that more than of the school engage in Correct Answer Corrections: Let = the true proportion of middle school students who in bullying behavior. = 0.75 and p H0: p > 0.75. The sample was randomly selected. = 418.5 and = 139.5 are at least Ha: p Random: Normal: np0 n(1 p0) − 10. Population more than 5580. = 2.59, = 0.0048. Since the is small, we reject and Independent: z P-value P-value H0 conclude that more than 75% of middle school students engage in bullying behavior. The French naturalist Count Buffon tossed a coin 4040 times. He got 2048 heads. That’s a bit more than one-half. Is this evidence that Count Buffon’s coin was not balanced? To find out, Luisa decides to
the null is true is only 0.0138, so we reject H0. This proves that more than of the school in Correct Answer Corrections: Let p = the true proportion of middle school students who engage in bullying behavior. H0: p = 0.75 and Ha: p > 0.75. Random: The sample was randomly selected. Normal: np0 = 418.5 and n(1 − p0) = 139.5 are at least 10. Independent: Population more than 5580. z = 2.59, P-value = 0.0048. Since the P-value is small, we reject H0 and conclude that more than 75% of middle school students engage in bullying behavior. The French naturalist Count Buffon tossed a coin 4040 times. He got 2048 heads. That’s a bit more than one-half. Is this evidence that Count Buffon’s coin was not balanced? To find out, Luisa decides to
section_9.2_book_with_exercises.docx