1. When can you say that two samples are dependent or independent? Cite two research problems related to business (different from those problems below) wherein one will illustrate dependent samples while the other independent samples.
2. Identify the similarities and the differences between t test and F test. Cite specific research problems (different from those problems below) wherein one will be treated with t test and the other F test.
3. Two processes in a manufacturing line are performed manually: operation A and operation B. A random sample of 45 different assemblies using operation A shows that the sample average time per assembly is 8.5 minutes, with a population standard deviation of 1.30 minutes. A random sample of 50 different assemblies using operation B shows.