The mass (in kg) of a soil specimen is measured to be X = 1.18 ± 0.02. After the sample is dried in an oven, the mass of the dried soil is measured to be Y = 0.85 ± 0.02. Assume that X and Y come from normal populations and are unbiased. The water content of the soil is measured to be

a. From what distributions is it appropriate to simulate values X^ˆ— and Y^ˆ—?

d. Construct a normal probability plot for the values W^ˆ—. Is it reasonable to assume that W is approximately normally distributed?

Transcribed Image Text:

X – Y W = X