Mathematics, 21.08.2021 03:10, rubes08
Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is normally distributed with true standard deviation 0.76. (a) Compute a 95% CI for the true average porosity of a certain seam if the average porosity for 21 specimens from the seam was 4.85. (Round your answers to two decimal places.) , (b) Compute a 98% CI for true average porosity of another seam based on 18 specimens with a sample average porosity of 4.56. (Round your answers to two decimal places.)
Answers: 3
Mathematics, 21.06.2019 19:30, HockeyBlockpk7039
Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3
Answers: 2
Mathematics, 21.06.2019 22:20, flippinhailey
The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22
Answers: 1
Mathematics, 22.06.2019 07:30, staxeeyy767
20 points! how many rotations does each tire make after traveling 600 feet? round your answers to the nearest whole number. the small tire would make about how many rotations? the large tire would make about how many rotations. small tire radius = 9in. the big tire radius = 30in.
Answers: 3
Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is no...
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