a handy Z table calculator is at
davidmlane.com/hyperstat/z_table.html
you can explore the various values there.
An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution with mean µ = 0.35 and standard deviation s = 0.045
What proportion of adhesions (± 0.001) measured in use are higher than 0.41?
What proportion of adhesions (± 0.001) are between 0.41 and 0.6
1 answer
1 answer