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Question: Binge drinking In a recent National Survey of Drug Use and Health, 2312 of 5914 randomly selected full-time U.S. college students were classified as binge drinkers.
(a) Calculate and interpret a 99% confidence interval for the population proportion p that are binge drinkers.
(b) A newspaper article claims that 45% of full-time U.S. college students are binge drinkers. Use your result from part (a) to comment on this claim.
The tournament committee is discussing how many parking spots to contract from the city. If they want to limit the chance of not having enough provided parking.
Lemon Corporation, an automobile manufacturer, is trying to determine the source of defects in some of its autos.
The shrimp survey data (Examples 1 and 2) give a covariance function c(x) = 5.1 exp(-0.49x), where x is distance in nautical miles. The catches at sites 1 and 2, which are 3 nmi. apart, are 1.200 and 2.400, respectively (units are in thousands of ..
Do a two-sample test for equality of means assuming equal variances. Calculate the p-value. Comparison of GPA for randomly chosen college juniors and seniors: ¯ x1 = 3.05, s1 = .20, n1 = 15, ¯ x2 = 3.25, s2 = .30, n2 = 15, α = .025, left-tailed t..
Given (t-3y-5) dt + (y-t+1) dy =0 introduce a change of variables to transform this ODE into a homogeneous one and solve.
Measurements made on the internally compensated amplifiers listed below provide the dc gain and the frequency at which the gain has dropped by 20 dB. For each, what are the 3 dB and unity-gain frequencies?
question a sample of 12 funeral homes in ohio found these costs for cremation320152190285570995585820195160590150find
What is the probability of more than 3 phone calls per hour? Where do we encounter Binomial or Poisson processes in everyday life?
an artist sells her works at the east lansing art festival. suppose that 5 of those who stop by her booth will buy a
FLEX-TIME Of 320 male and 280 female employees at the home office of Gibraltar Insurance Company, 160 of the men and 190 of the women are on flex-time.
A researcher collected sample data for 17 women ages 18 to 24 . The sample had a mean serum cholesterol level (measured in mg/100 mL) of 188.8 , with a standard deviation of 5.5.
A physician's health study of the effectiveness of aspirin in the reduction of heart attacks was begun in 1982 and completed in 1987. Of 11,037 male medical doctors in the United States who took one 325 mg buffered aspirin tablet every other day
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