A researcher in the petroleum industry is interested in the sizes of wax crystals produced when wax
Question:
(a) Write down an expression for the p-value of the statement that the average crystal size does not depend upon the pre-expansion temperature. Do you think that this is a plausible statement?
(b) Construct a 99% two-sided confidence interval for the difference between the average crystal diameters at the two pre-expansion temperatures.
(c) If a 99% two-sided confidence interval for the difference between the average crystal diameters at the two pre-expansion temperatures is required with a length no larger than L0 = 4.0 μm, how much additional sampling would you recommend?
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Related Book For
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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