Mathematics, 25.03.2020 06:36 btcastongia
A consumer affairs investigator records the repair cost for 4 randomly selected TVs. A sample mean of $87.52 and standard deviation of $19.29 are subsequently computed. Determine the 80% confidence interval for the mean repair cost for the TVs. Assume the population is approximately normal.
Answers: 1
Mathematics, 21.06.2019 15:00
With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17
Answers: 2
Mathematics, 21.06.2019 16:30
Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?
Answers: 3
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
Answers: 3
Mathematics, 21.06.2019 21:00
Which of the functions graphed below has a removable discontinuity?
Answers: 2
A consumer affairs investigator records the repair cost for 4 randomly selected TVs. A sample mean o...
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