Mean height of a population
A 97% confidence interval (in inches) for the mean height of a population is (65.4 , 67.0). This result is based on a sample of size 144. Construct the 90% confidence interval.
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A velocity profile for fully developed laminar flow in a circular tube as u=umax [1-(r/R)^2]. obtain an expression for shear force per unit volume in the x direction for this flow?
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