Chapter 4
Q. 4.14
Refer to Example 4.13. The yield of a certain run has a z-score of -1.4. Find the yield in the original units of grams.
Step-by-Step
Verified Solution
We use Equation (4.1 0), substituting -1.4 for ζ and solving for x. We obtain
z = \frac{x – μ}{σ} (4.10)
-1.4 = \frac{x – 1500}{50}
Solving for x yields x = 1430. The yield is 1430 grams.