Mathematics, 15.04.2020 23:38, angelina0miles
National data in the 1960's showed that about 44% of the adult population had never smoked cigarettes. In 1995 a national health survey interviewed a random sample of 881 adults and found that 52% had never been smokers.
a) Create a 95% confidence interval for the proportion of adults (in 1995) who had never been smokers.
b) Does this provide evidence of a change in behavior among Americans? Using your confidence level, test an appropriate hypothesis and state your conclusion.
Answers: 2
Mathematics, 22.06.2019 01:50, savannahwatson620102
Find the area between y=e^x and y=e^2x over [0,1]
Answers: 1
National data in the 1960's showed that about 44% of the adult population had never smoked cigarette...
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