Mathematics, 01.05.2021 02:10, xczapien782
g Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is normally distributed with true standard deviation .75. a. Compute a 95% CI for the true average porosity of a certain seam if the average porosity for 20 specimens from the seam was 4.85. b. Compute a 98% CI for true average porosity of another seam based on 16 specimens with a sample average porosity of 4.56. c. How large a sample size is necessary if the width of the 95% interval is to be .40
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Mathematics, 21.06.2019 18:30, wiredq2049
Ill mark the brainliest if you me with the these three questions 7,8,9
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Mathematics, 22.06.2019 04:00, calebwoodall6477
Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )
Answers: 1
g Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is...
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