Mathematics, 02.12.2021 03:00 madisynivy6
In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007 adults to learn about their major healthcare concerns. The survey results showed that 574 of the respondents lack confidence they will be able to afford health insurance in the future.
(a) What is the point estimate of the population proportion of adults who lack confidence they will be able to afford health insurance in the future.(b) At 90% confidence, what is the margin of error? (c) Develop a 90% confidence interval for the population proportion of adults who lack confidence they will be able to afford health insurance in the future.
(d) Develop a 95% confidence interval for this population proportion.
Answers: 2
Mathematics, 21.06.2019 17:20
Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem
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Mathematics, 21.06.2019 19:00
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Mathematics, 21.06.2019 21:30
Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)
Answers: 1
In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007 adu...
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