In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try. Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of an individual’s passing on his or her first try. In a sample of 250 recent applicants, 130 passed on their first attempt. At the 0.025 level of significance, can we conclude that the proportion passing on the first try has increased? Construct a 95% confidence interval for π and using that interval, can you judge whether the proportion passing on the first try has increased?
In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try. Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of an individual’s passing on his or her first try. In a sample of 250 recent applicants, 130 passed on their first attempt. At the 0.025 level of significance, can we conclude that the proportion passing on the first try has increased? Construct a 95% confidence interval for π and using that interval, can you judge whether the proportion passing on the first try has increased?
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try. Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of an individual’s passing on his or her first try. In a sample of 250 recent applicants, 130 passed on their first attempt. At the 0.025 level of significance, can we conclude that the proportion passing on the first try has increased? Construct a 95% confidence interval for π and using that interval, can you judge whether the proportion passing on the first try has increased?
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