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A country's education department reported that in 2015, 62.8% of students enrolled in college or a trade school within 12 months of graduating high

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A country's education department reported that in 2015, 62.8% of students enrolled in college or a trade school within 12 months of graduating high school. In 2017, a random sample of 150 individuals who graduated from high school 12 months prior was selected. From this sample, 92 students were found to be enrolled in college or a trade school. Complete parts a through c. a. Construct a 90% confidence interval to estimate the actual proportion of students enrolled in college or a trade school within 12 months of graduating from high school in 2017. The confidence interval has a lower limit of and an upper limit of . (Round to three decimal places as needed.) b. What is the margin of error for this sample? The margin of error is . (Round to three decimal places as needed.) c. Based on this sample, is there any evidence that this proportion has changed since 2015? This sample evidence that this proportion has changed since 2015, since the

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