Reference no: EM132923343

Randomized controlled trials or more advanced statistical methods such as path analysis and structural equation modeling, coupled with proper research design, are needed in order to take the next step of inference in the causal chain, testing a causal hypothesis. While correlational analyses are by definition from non-experimental research, research without carefully controlled experimental conditions, it is nevertheless relevant to evidence-based practice.18 Observational methods of study can be conducted using either a cross-sectional design (a snap-shot of prevalence at one time-point), a retrospective design (looking back to compare current with past attributes) or prospective design (documenting current occurrences and following up at a future time-point to make comparisons).

1. Can in real sense the mechanization of the Foundry processes be achieved.

2. Elaborate on the versatility of the Casting as applied in the manufacturing?

3. The product of the foundry process is? Embark your answer with facts and justifications

4. What are the effects of the Heat treatment in the suppressing of stresses produced in castings?

5. Relate the Auxiliary to the increase the melting efficiency.

6. Falsify; To form castings, always virgin metal is used in foundries.

7. Which metal castings are used to make casting in the foundry? Explain

8. What is the follow up activity of the last step of the foundry?

9. Show the Mould, Sand and Core as the byproducts of the pattern foundry

10. _____________ is a process of preparing a casting. Explain accordingly