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Mathematics, 31.07.2021 03:10 sandy8438

Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is normally distributed with true standard deviation 0.74. (a) Compute a 95% CI for the true average porosity of a certain seam if the average porosity for 19 specimens from the seam was 4.85. (Round your answers to

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Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is no...
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