Among college-age students (18-24 years old), 9.2% have hypertension

Among college-age students (18-24 years old), 9.2% have hypertension. During a blood-donor program conducted during finals week, a blood-pressure reading is taken first, revealing that out of 200 donors, 29 have hypertension. All answers to three places after the decimal.

1. A 95% confidence interval for the true proportion of college students with hypertension during finals week is ( ) to ( )

2.We can be 80% confident that the true proportion of college students with hypertension during finals week is ( ),with a margin of error of ( )

3. Unless our sample (of 200 donors) is among the most unusual 10% of samples, the true proportion of college students with hypertension during finals week is between( ) and ( )

4.The probability, at 60% confidence, that a given college donor will have hypertension during finals week is ( ), with a margin of error of ( )

5. Assuming our sample of donors is among the most typical half of such samples, the true proportion of college students with hypertension during finals week is between( ) and ( )

6. We are 99% confident that the true proportion of college students with hypertension during finals week is ( ), with a margin of error of ( )

7.Assuming our sample of donors is among the most typical 99.9% of such samples, the true proportion of college students with hypertension during finals week is between ( ) and ( )

8. Covering the worst-case scenario, how many donors must we examine in order to be 95% confident that we have the margin of error as small as 0.01?

9. Using a prior estimate of 15% of college-age students having hypertension, how many donors must we examine in order to be 99% confident that we have the margin of error as small as 0.01?

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