Question

A new survey found that out of a random sample of 300 high school students throughout the country who had previously signed up to take the AP Statistics exam, 83% of them still planned on taking the adjusted version.

- Construct and interpret a 95% confidence interval for the true proportion of all students who still plan on taking their AP Stats exam.
- Explain what 95% confidence means in the context of this question.
- The AP exam believes that more than 86% of students will still be taking the exam. What can you say about their claim based on your interval in part (a)?

Answer #1

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considered the differences between the reading and writing scores
of a random sample of 200 students who took the High School and
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the differences are x̄read-write = -0.545 and 8.887
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Table 6.5
Observation
Grade
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1
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5
68
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