(Solution) - Consider Supplemental Exercise 10 72 Suppose that prior to -(2025 Original AI-Free Solution)

Paper Details

Consider Supplemental Exercise 10-72. Suppose that prior to collecting the data, you decide that you want the error in estimating ?1 = ?2 by x1 = x2 to be less than 1.5 psi. Specify the sample size for the following percentage confidence:
(a) 90%
(b) 98%
(c) Comment on the effect of increasing the percentage confidence on the sample size needed.
(d) Repeat parts (a)?(c) with an error of less than 0.75 psi instead of 1.5 psi.
(e) Comment on the effect of decreasing the error on the sample size needed.