Mathematics, 21.12.2019 01:31 blazecarley
Consolidated power, a large electric power utility, has just built a modern nuclear power plant. this plant discharges waste water that is allowed to flow into the atlantic ocean. the environmental protection agency (epa) has ordered that the waste water may not be excessively warm so that thermal pollution of the marine environment near the plant can be avoided. because of this order, the waste water is allowed to cool in specially constructed ponds and is then released into the ocean. this cooling system works properly if the mean temperature of waste water discharged is 61of or cooler. consolidated power is required to monitor the temperature of the waste water. a sample of 100 temperature readings will be obtained each day, and if the sample results cast a substantial amount of doubt on the hypothesis that the cooling system is working properly (the mean temperature of waste water discharged is 61of or cooler), then the plant must be shut down and appropriate actions must be taken to correct the problem.
(a) consolidated power wishes to set up a hypothesis test so that the power plant will be shut down when the null hypothesis is rejected. set up the null and alternative hypotheses that should be used.
h0: µ (click to select)> ≤ 61 versus ha: µ (click to select)> ≤ 61 where µ = mean temperature of waste water.
(b) in the context of this situation, interpret making a type i error; interpret making a type ii error.
type i error: decide µ (click to select)> ≤ 61 (shut down) when µ (click to select)> ≤ 61 (water is cool enough, no shutdown needed)
type ii error: decide µ (click to select)> ≤ 61 (do not shut down) when µ (click to select)> ≤ 61 (water is too warm shutdown needed)
(c) the epa periodically conducts spot checks to determine whether the waste water being discharged is too warm. suppose the epa has the power to impose very severe penalties (for example, very heavy fines) when the waste water is excessively warm. other things being equal, should consolidated power set the probability of a type i error equal to α = .01 or α = .05?
set α = 0.05 to make the probability of a (click to select)type itype ii error
Answers: 1
Mathematics, 21.06.2019 13:30
Suppose the first five terms of a sequence are 4, 5, 9, 27, 123. how could the next term in the sequence be generated?
Answers: 1
Mathematics, 21.06.2019 17:00
Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.
Answers: 1
Mathematics, 21.06.2019 21:00
Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w
Answers: 1
Consolidated power, a large electric power utility, has just built a modern nuclear power plant. thi...
Mathematics, 02.11.2020 14:00
Physics, 02.11.2020 14:00
English, 02.11.2020 14:00
History, 02.11.2020 14:00
English, 02.11.2020 14:00
Arts, 02.11.2020 14:00
World Languages, 02.11.2020 14:00
Arts, 02.11.2020 14:00
English, 02.11.2020 14:00