Mathematics, 30.07.2019 20:30 washingtonwhitney995
Aresearcher compares two compounds (1 and 2) used in the manufacture of car tires that are designed to reduce braking distances for suvs equipped with the tires. suvs equipped with tires using compound 1 have a mean braking distance of 61 feet and a standard deviation of 8.3 feet. suvs equipped with tires using compound 2 have a mean braking distance of 67 feet and a standard deviation of 11.0 feet. suppose that a sample of 77 braking tests are performed for each compound. using these results, test the claim that the braking distance for suvs equipped with tires using compound 1 is shorter than the braking distance when compound 2 is used. let μ1 be the true mean braking distance corresponding to compound 1 and μ2 be the true mean braking distance corresponding to compound 2. use the 0.05level of significance. step 3 of 4 : determine the decision rule for rejecting the null hypothesis h0. round the numerical portion of your answer to three decimal places.
Answers: 1
Mathematics, 21.06.2019 17:20
The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6
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Mathematics, 21.06.2019 19:00
The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).
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Mathematics, 21.06.2019 20:30
If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?
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Mathematics, 21.06.2019 20:30
Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.
Answers: 3
Aresearcher compares two compounds (1 and 2) used in the manufacture of car tires that are designed...
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