Two catalysts may be used in a batch chemical process.

Last updated: 8/7/2022

Two catalysts may be used in a batch chemical process. Twelve batches were prepared using catalyst 1, resulting in an average yield of 86 and a sample standard deviation of 3. Sixteen batches were prepared using catalyst 2, and they resulted in an average yield of 89 with a standard deviation of 2. Assume that yield measurements are approximately normally distributed with the same standard deviation. Is there evidence to support a claim that catalyst 2 produces a higher mean yield than catalyst 1? Use a = 0.01. What is the type of test to be used? A F-test, two-tailed B z-test, left tailed C F-test, right-tailed D z-test, two tailed E F-test left tailed