savannah19dw
02.08.2019 •
Mathematics
Guns make a unique marking on the bullets they fire and their shell casings. these markings are called ballistic fingerprints. an abcnews poll examined the opinions of americans on the enactment of a law " that would require every gun sold in the united states to be test-fired first, so law enforcement would have its fingerprints in case it were ever used in a crime." independent simple random samples were taken of 537 women and 495 men. when asked if they would support a ballisting fingerprinting law, 446 of the women said "yes" while 307 of the men said "yes." give a 99% confidence interval for the difference in the proportion of women and the proportion of men supporting the law. note: use women minus men in your proportion calculations and base your confidence interval on a pooled estimate of p.
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Ответ:
1. 38:57
2. 24:32 or 6:8 or 3:4
3. 10 teaspoons
4. 90 cents
5. for every 4 votes tiffany got, jared got 3