Mathematics, 23.11.2019 05:31, ThGlitchz
Astudy was conducted to determine the proportion of american teenagers between 13 and 17 who smoke. previous surveys showed that 15% percent of all teenagers smoke. a gallup survey interviewed a nationally representative sample of 785 teenagers aged 13 to 17. seventy-one teenagers in the survey acknowledged having smoked at least once in the past week. does the study provide adequate evidence to conclude that the percentage of teenagers who smoke is now different than 15%
1. are the requirements for both a confidence intervale and a hypothesis test met?
2. determine the appropriate 95% confidence intervale for the true proportion of teenage smokers. input your answers for the margin of error, lower bound and upper bound.
Answers: 3
Mathematics, 21.06.2019 21:00, batmanmarie2004
The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?
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Mathematics, 21.06.2019 21:30, Kittylover65
The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?
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Mathematics, 21.06.2019 22:30, lorilhuff8197
Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de
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Astudy was conducted to determine the proportion of american teenagers between 13 and 17 who smoke....
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