Mathematics, 17.12.2019 03:31, Kimmie2019
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 99% ci for the true average porosity of a certain seam if the average porosity for 16 specimens from the seam was 4.85. (give answers accurate to 2 decimal places.)
Answers: 2
= sample mean
= Population standard deviation.
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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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